diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95cc80d69..f7afa492a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,25 @@
 
 ## [Unreleased]
 
-## [1.28.54] — 2026-07-16 — One hero on the dashboard
+## [1.28.55] — 2026-07-16 — The Today view comes to life
+
+Three pieces turn the Today view into a daily loop:
+
+- **A coach check-in.** When a coach plan is due for a look-back, it surfaces as
+  a calm card in Today with keep, adjust, or let-go — one tap. Letting go retires
+  the plan quietly; silence never changes it.
+- **A morning that reflects last night.** The score and read are prepared
+  overnight, but last night's sleep usually hasn't synced by then. Now, the
+  moment it arrives, the sleep-dependent parts refresh on their own — so by the
+  time you look, the day is up to date. Until sleep is in, Today says so plainly
+  instead of showing a stale score.
+- **An optional daily nudge.** A once-a-day morning notification with the day's
+  read, off by default and opt-in per channel under Notifications. It carries the
+  refreshed digest when sleep is in, never repeats within a day, and is a calm
+  note — never an alert.
+
+All three read the digest prepared overnight; nothing is generated when you open
+the app.
 
 With the Today view now leading the dashboard, the older opt-in hero card it
 replaced is retired, so the two never stack. The greeting stays, the tiles and
diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 8c8b32d4a..fc9fb8f51 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: HealthLog API
-  version: 1.28.54
+  version: 1.28.55
   description: >-
     Self-hosted personal-health-tracking PWA — public API surface for the iOS native client and external ingest.
 
diff --git a/e2e/dashboard.spec.ts b/e2e/dashboard.spec.ts
index 53e680acd..017051510 100644
--- a/e2e/dashboard.spec.ts
+++ b/e2e/dashboard.spec.ts
@@ -130,6 +130,31 @@ test.describe("authenticated dashboard render", () => {
                   },
                 ],
               },
+              // S3 — a coach check-in card (keep / adjust / let-go). Rendered
+              // only; the mutating taps PATCH the plan route, which this spec
+              // never clicks, so it stays green without a plan-route stub.
+              {
+                kind: "coach_checkin",
+                title: "Time to check in on a plan",
+                body: "About a week ago you set: “every morning → weigh in”.",
+                status: "info",
+                moduleKey: "coach",
+                actions: [
+                  {
+                    labelKey: "daily.action.checkinKeep",
+                    intent: "coach.checkin.keep:p1",
+                  },
+                  {
+                    labelKey: "daily.action.checkinAdjust",
+                    intent: "coach.checkin.adjust",
+                    href: "/coach",
+                  },
+                  {
+                    labelKey: "daily.action.checkinLetGo",
+                    intent: "coach.checkin.letGo:p1",
+                  },
+                ],
+              },
             ],
           },
           error: null,
diff --git a/messages/de.json b/messages/de.json
index 8b9e48854..c8907407d 100644
--- a/messages/de.json
+++ b/messages/de.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Wird gesendet, wenn eine erfasste Messung fällig ist.",
     "eventMedicationIntakeSync": "Einnahme-Synchronisierung",
     "eventMedicationIntakeSyncDesc": "Geräteübergreifende Aktualisierung, wenn eine Dosis protokolliert, eingenommen oder übersprungen wird.",
+    "eventDailyBriefing": "Täglicher Überblick",
+    "eventDailyBriefingDesc": "Eine ruhige Morgenzusammenfassung deines Tages. Standardmäßig aus, bis du sie aktivierst.",
     "security": {
       "newDeviceTitle": "Neue Anmeldung bei deinem Konto",
       "newDeviceBody": "Eine neue Anmeldung von {device} ({location}). Falls du das nicht warst, ändere sofort dein Passwort.",
@@ -8524,6 +8526,10 @@
       "score": "Dein Gesundheitsscore heute liegt bei {score}.",
       "allClear": "Heute braucht nichts deine Aufmerksamkeit — alles verläuft normal."
     },
+    "push": {
+      "title": "Dein Morgenüberblick",
+      "bodyProvisional": "{line} · Der Schlaf von letzter Nacht fehlt noch."
+    },
     "item": {
       "doseWindow": {
         "title": "Medikament fällig",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "Synchronisierung braucht Aufmerksamkeit",
         "body": "{integration} synchronisiert nicht — verbinde neu, um deine Daten aktuell zu halten."
+      },
+      "coachCheckin": {
+        "title": "Zeit, einen Plan anzuschauen",
+        "body": "Es ist etwa eine Woche her, seit du diesen Plan gesetzt hast — behalte ihn, passe ihn an oder lass ihn los. Ganz ohne Druck.",
+        "bodyPlan": "Vor etwa einer Woche hast du dir vorgenommen: „{plan}“. Behalte es, passe es an oder lass es los — ganz ohne Druck."
       }
     },
     "action": {
       "logDose": "Dosis erfassen",
       "reconnect": "Neu verbinden",
-      "viewCheckups": "Vorsorge ansehen"
+      "viewCheckups": "Vorsorge ansehen",
+      "checkinKeep": "Behalten",
+      "checkinAdjust": "Anpassen",
+      "checkinLetGo": "Loslassen"
     },
     "today": {
       "scoreLabel": "Gesundheitsscore",
diff --git a/messages/en.json b/messages/en.json
index 338f5c722..11f67878f 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Sent when a tracked measurement is due.",
     "eventMedicationIntakeSync": "Medication intake sync",
     "eventMedicationIntakeSyncDesc": "Cross-device update when a dose is logged, taken or skipped.",
+    "eventDailyBriefing": "Daily briefing",
+    "eventDailyBriefingDesc": "One calm morning summary of your day's read. Off until you turn it on.",
     "security": {
       "newDeviceTitle": "New sign-in to your account",
       "newDeviceBody": "A new sign-in from {device} ({location}). If this wasn't you, change your password immediately.",
@@ -8524,6 +8526,10 @@
       "score": "Your health score today is {score}.",
       "allClear": "Nothing needs your attention today — everything's tracking normally."
     },
+    "push": {
+      "title": "Your morning briefing",
+      "bodyProvisional": "{line} · Last night's sleep isn't in yet."
+    },
     "item": {
       "doseWindow": {
         "title": "Medication due",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "Sync needs attention",
         "body": "{integration} isn't syncing — reconnect to keep your data current."
+      },
+      "coachCheckin": {
+        "title": "Time to check in on a plan",
+        "body": "It's been about a week since you set this plan — keep it, adjust it, or let it go. No pressure either way.",
+        "bodyPlan": "About a week ago you set: “{plan}”. Keep it, adjust it, or let it go — no pressure either way."
       }
     },
     "action": {
       "logDose": "Log dose",
       "reconnect": "Reconnect",
-      "viewCheckups": "View check-ups"
+      "viewCheckups": "View check-ups",
+      "checkinKeep": "Keep it",
+      "checkinAdjust": "Adjust",
+      "checkinLetGo": "Let it go"
     },
     "today": {
       "scoreLabel": "Health score",
diff --git a/messages/es.json b/messages/es.json
index bfc69f1ef..79883e68e 100644
--- a/messages/es.json
+++ b/messages/es.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Se envía cuando una medición registrada está pendiente.",
     "eventMedicationIntakeSync": "Sincronización de tomas",
     "eventMedicationIntakeSyncDesc": "Actualización entre dispositivos cuando se registra, toma u omite una dosis.",
+    "eventDailyBriefing": "Resumen diario",
+    "eventDailyBriefingDesc": "Un resumen matinal y tranquilo de tu día. Desactivado hasta que lo actives.",
     "security": {
       "newDeviceTitle": "Nuevo inicio de sesión en tu cuenta",
       "newDeviceBody": "Un nuevo inicio de sesión desde {device} ({location}). Si no fuiste tú, cambia tu contraseña de inmediato.",
@@ -8524,6 +8526,10 @@
       "score": "Tu puntuación de salud hoy es {score}.",
       "allClear": "Hoy nada requiere tu atención: todo evoluciona con normalidad."
     },
+    "push": {
+      "title": "Tu resumen matinal",
+      "bodyProvisional": "{line} · El sueño de anoche aún no está disponible."
+    },
     "item": {
       "doseWindow": {
         "title": "Medicación pendiente",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "La sincronización necesita atención",
         "body": "{integration} no se está sincronizando: vuelve a conectarlo para mantener tus datos al día."
+      },
+      "coachCheckin": {
+        "title": "Es buen momento para revisar un plan",
+        "body": "Ha pasado alrededor de una semana desde que definiste este plan: consérvalo, ajústalo o déjalo ir. Sin presión.",
+        "bodyPlan": "Hace aproximadamente una semana te propusiste: «{plan}». Consérvalo, ajústalo o déjalo ir, sin presión."
       }
     },
     "action": {
       "logDose": "Registrar dosis",
       "reconnect": "Reconectar",
-      "viewCheckups": "Ver revisiones"
+      "viewCheckups": "Ver revisiones",
+      "checkinKeep": "Conservar",
+      "checkinAdjust": "Ajustar",
+      "checkinLetGo": "Dejarlo ir"
     },
     "today": {
       "scoreLabel": "Puntuación de salud",
diff --git a/messages/fr.json b/messages/fr.json
index 5ce9173e0..85d4f3acf 100644
--- a/messages/fr.json
+++ b/messages/fr.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Envoyé lorsqu'une mesure suivie est due.",
     "eventMedicationIntakeSync": "Synchronisation des prises",
     "eventMedicationIntakeSyncDesc": "Mise à jour entre appareils quand une dose est enregistrée, prise ou ignorée.",
+    "eventDailyBriefing": "Résumé quotidien",
+    "eventDailyBriefingDesc": "Un résumé matinal et posé de votre journée. Désactivé jusqu'à ce que vous l'activiez.",
     "security": {
       "newDeviceTitle": "Nouvelle connexion à votre compte",
       "newDeviceBody": "Une nouvelle connexion depuis {device} ({location}). Si ce n'était pas vous, changez votre mot de passe immédiatement.",
@@ -8524,6 +8526,10 @@
       "score": "Ton score de santé aujourd'hui est de {score}.",
       "allClear": "Rien ne requiert ton attention aujourd'hui — tout évolue normalement."
     },
+    "push": {
+      "title": "Votre résumé du matin",
+      "bodyProvisional": "{line} · Le sommeil de la nuit dernière n'est pas encore disponible."
+    },
     "item": {
       "doseWindow": {
         "title": "Médicament à prendre",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "La synchronisation demande votre attention",
         "body": "{integration} ne se synchronise pas — reconnecte-le pour garder tes données à jour."
+      },
+      "coachCheckin": {
+        "title": "Il est temps de revoir un plan",
+        "body": "Cela fait environ une semaine que vous avez défini ce plan : gardez-le, ajustez-le ou laissez-le. Sans pression.",
+        "bodyPlan": "Il y a environ une semaine, vous vous étiez fixé : « {plan} ». Gardez-le, ajustez-le ou laissez-le, sans pression."
       }
     },
     "action": {
       "logDose": "Enregistrer la dose",
       "reconnect": "Reconnecter",
-      "viewCheckups": "Voir les examens"
+      "viewCheckups": "Voir les examens",
+      "checkinKeep": "Garder",
+      "checkinAdjust": "Ajuster",
+      "checkinLetGo": "Laisser tomber"
     },
     "today": {
       "scoreLabel": "Score de santé",
diff --git a/messages/it.json b/messages/it.json
index 624584900..b0702e182 100644
--- a/messages/it.json
+++ b/messages/it.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Inviato quando una misurazione tracciata è in scadenza.",
     "eventMedicationIntakeSync": "Sincronizzazione assunzioni",
     "eventMedicationIntakeSyncDesc": "Aggiornamento tra dispositivi quando una dose viene registrata, assunta o saltata.",
+    "eventDailyBriefing": "Riepilogo quotidiano",
+    "eventDailyBriefingDesc": "Un riepilogo mattutino e tranquillo della tua giornata. Disattivato finché non lo attivi.",
     "security": {
       "newDeviceTitle": "Nuovo accesso al tuo account",
       "newDeviceBody": "Un nuovo accesso da {device} ({location}). Se non sei stato tu, cambia subito la password.",
@@ -8524,6 +8526,10 @@
       "score": "Il tuo punteggio di salute oggi è {score}.",
       "allClear": "Oggi nulla richiede la tua attenzione — tutto procede normalmente."
     },
+    "push": {
+      "title": "Il tuo riepilogo mattutino",
+      "bodyProvisional": "{line} · Il sonno della scorsa notte non è ancora disponibile."
+    },
     "item": {
       "doseWindow": {
         "title": "Farmaco da assumere",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "La sincronizzazione richiede attenzione",
         "body": "{integration} non si sincronizza — riconnettilo per mantenere aggiornati i tuoi dati."
+      },
+      "coachCheckin": {
+        "title": "È il momento di rivedere un piano",
+        "body": "È passata circa una settimana da quando hai definito questo piano: mantienilo, modificalo o lascialo andare. Senza pressioni.",
+        "bodyPlan": "Circa una settimana fa ti eri proposto: «{plan}». Mantienilo, modificalo o lascialo andare, senza pressioni."
       }
     },
     "action": {
       "logDose": "Registra dose",
       "reconnect": "Riconnetti",
-      "viewCheckups": "Vedi controlli"
+      "viewCheckups": "Vedi controlli",
+      "checkinKeep": "Mantieni",
+      "checkinAdjust": "Modifica",
+      "checkinLetGo": "Lascia andare"
     },
     "today": {
       "scoreLabel": "Punteggio di salute",
diff --git a/messages/pl.json b/messages/pl.json
index ce1a0a0a9..b057686a9 100644
--- a/messages/pl.json
+++ b/messages/pl.json
@@ -6536,6 +6536,8 @@
     "eventMeasurementReminderDesc": "Wysyłane, gdy śledzony pomiar jest wymagany.",
     "eventMedicationIntakeSync": "Synchronizacja przyjęć leku",
     "eventMedicationIntakeSyncDesc": "Aktualizacja między urządzeniami, gdy dawka zostanie zapisana, przyjęta lub pominięta.",
+    "eventDailyBriefing": "Codzienne podsumowanie",
+    "eventDailyBriefingDesc": "Spokojne poranne podsumowanie Twojego dnia. Wyłączone, dopóki go nie włączysz.",
     "security": {
       "newDeviceTitle": "Nowe logowanie do Twojego konta",
       "newDeviceBody": "Nowe logowanie z {device} ({location}). Jeśli to nie Ty, natychmiast zmień hasło.",
@@ -8524,6 +8526,10 @@
       "score": "Twój dzisiejszy wynik zdrowia to {score}.",
       "allClear": "Dziś nic nie wymaga Twojej uwagi — wszystko przebiega normalnie."
     },
+    "push": {
+      "title": "Twoje poranne podsumowanie",
+      "bodyProvisional": "{line} · Brakuje jeszcze snu z zeszłej nocy."
+    },
     "item": {
       "doseWindow": {
         "title": "Lek do przyjęcia",
@@ -8538,12 +8544,20 @@
       "syncIssue": {
         "title": "Synchronizacja wymaga uwagi",
         "body": "{integration} się nie synchronizuje — połącz ponownie, aby dane były aktualne."
+      },
+      "coachCheckin": {
+        "title": "Czas przyjrzeć się planowi",
+        "body": "Minął mniej więcej tydzień, odkąd ustaliłeś ten plan — zachowaj go, dostosuj lub odpuść. Bez presji.",
+        "bodyPlan": "Około tygodnia temu postanowiłeś: „{plan}”. Zachowaj to, dostosuj lub odpuść — bez presji."
       }
     },
     "action": {
       "logDose": "Zapisz dawkę",
       "reconnect": "Połącz ponownie",
-      "viewCheckups": "Zobacz badania"
+      "viewCheckups": "Zobacz badania",
+      "checkinKeep": "Zachowaj",
+      "checkinAdjust": "Dostosuj",
+      "checkinLetGo": "Odpuść"
     },
     "today": {
       "scoreLabel": "Wynik zdrowia",
diff --git a/package.json b/package.json
index a7ff7fda3..500802a1a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "healthlog",
-  "version": "1.28.54",
+  "version": "1.28.55",
   "description": "Self-hosted personal-health-tracking PWA with Withings integration, AI insights, and doctor-report PDF export.",
   "license": "PolyForm-Noncommercial-1.0.0",
   "homepage": "https://healthlog.dev",
diff --git a/prisma/migrations/0244_morning_digest_refresh_marker/migration.sql b/prisma/migrations/0244_morning_digest_refresh_marker/migration.sql
new file mode 100644
index 000000000..febf3b48d
--- /dev/null
+++ b/prisma/migrations/0244_morning_digest_refresh_marker/migration.sql
@@ -0,0 +1,15 @@
+-- Morning-freshness marker (S4 of the unified daily-value system).
+--
+-- The nightly insight pre-pass runs ~04:30, before last night's sleep has
+-- synced, so the morning digest/health-score reference the day WITHOUT the
+-- current sleep. This column records the user-local YYYY-MM-DD (their profile
+-- timezone) for which the event-driven morning refresh has completed: last
+-- night's sleep arrived AND the sleep-dependent insight/score cache was
+-- regenerated with it. The daily digest reports `final` once this equals the
+-- user's current local date, `provisional` otherwise (honest degradation when
+-- sleep is late or never arrives). Stamped by the `morning-digest-refresh`
+-- pg-boss job the sleep-arrival trigger enqueues, debounced once per local
+-- morning. NULL for every existing row = provisional until the next sleep
+-- landing, which is the correct pre-feature reading.
+ALTER TABLE "users"
+  ADD COLUMN "morning_digest_refreshed_on" TEXT;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 564c80639..ba24b0d8e 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -111,6 +111,15 @@ model User {
   // without re-paying for the findings. This stamps the day a re-roll ran so
   // the gate stays at most one extra call per day.
   insightsBriefingRerollDate String?   @map("insights_briefing_reroll_date")
+  // Morning-freshness marker: the user-local YYYY-MM-DD (their profile
+  // timezone) for which the event-driven morning refresh has run — i.e. last
+  // night's sleep has arrived AND the sleep-dependent insight/score cache was
+  // regenerated with it. The daily digest reads `final` when this equals the
+  // user's current local date, `provisional` otherwise. Stamped by the
+  // `morning-digest-refresh` job the sleep-arrival trigger enqueues; the
+  // string form makes the "same local morning" comparison timezone-honest
+  // without a second timestamp read.
+  morningDigestRefreshedOn   String?   @map("morning_digest_refreshed_on")
   // v1.4.36 W3 T3 — per-user AI Insights exclude-metrics list, mirrors
   // `coachPrefsJson.excludeMetrics`. The /api/insights/generate route
   // filters matching keys off `features` before JSON.stringify so the
diff --git a/public/sw.js b/public/sw.js
index 93dd81d29..e89f2e39d 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -36,7 +36,7 @@ try {
 // v1.4.38.4 → v1.4.42. Do not hand-edit; bump `package.json` and rebuild.
 const CACHE_VERSION =
   (typeof self !== "undefined" && self.__APP_VERSION__) ||
-  /* @sw-version-fallback */ "v1.28.54";
+  /* @sw-version-fallback */ "v1.28.55";
 const STATIC_CACHE = `healthlog-static-${CACHE_VERSION}`;
 const PAGE_CACHE = `healthlog-pages-${CACHE_VERSION}`;
 // v1.18.6 — read-only data cache for a curated allowlist of safe GET `/api/*`
diff --git a/src/app/api/coach/plans/[id]/route.ts b/src/app/api/coach/plans/[id]/route.ts
index f89226ee8..f21351a5c 100644
--- a/src/app/api/coach/plans/[id]/route.ts
+++ b/src/app/api/coach/plans/[id]/route.ts
@@ -34,6 +34,7 @@ import { prisma } from "@/lib/db";
 import { requireModuleEnabled } from "@/lib/modules/gate";
 import { checkRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { decryptFromBytes } from "@/lib/ai/coach/bytes-codec";
+import { COACH_CHECKIN_REVIEW_DAYS } from "@/lib/daily/digest";
 import { coachPlanPatchSchema } from "@/lib/validations/coach-plan";
 
 interface RouteCtx {
@@ -94,6 +95,23 @@ export const PATCH = apiHandler(async (req: NextRequest, ctx: RouteCtx) => {
       : null;
   }
 
+  // S3 (§2.3.1) — every accepted plan earns a check-in. When the coach
+  // activates a plan and set no review date of its own, default `reviewDate` to
+  // +COACH_CHECKIN_REVIEW_DAYS so the Today check-in card fires in a week. Read
+  // the current row first so an explicitly-pinned review date is never
+  // clobbered; the read stays owner-scoped, so it leaks no cross-account state.
+  if (parsed.data.status === "active" && parsed.data.reviewDate === undefined) {
+    const current = await prisma.coachPlan.findFirst({
+      where: { id, userId: user.id, deletedAt: null },
+      select: { reviewDate: true },
+    });
+    if (current && current.reviewDate === null) {
+      data.reviewDate = new Date(
+        Date.now() + COACH_CHECKIN_REVIEW_DAYS * 86_400_000,
+      );
+    }
+  }
+
   // `updateMany` (not `update`) so an unknown / cross-user / already-deleted id
   // is a 0-count no-op rather than a P2025 throw — the existence channel never
   // leaks across accounts.
diff --git a/src/app/api/coach/plans/__tests__/route.test.ts b/src/app/api/coach/plans/__tests__/route.test.ts
index a41f9d075..f0b871460 100644
--- a/src/app/api/coach/plans/__tests__/route.test.ts
+++ b/src/app/api/coach/plans/__tests__/route.test.ts
@@ -315,7 +315,68 @@ describe("PATCH /api/coach/plans/[id]", () => {
     expect(arg.where.id).toBe("p1");
     expect(arg.where.userId).toBe("user-1");
     expect(arg.where.deletedAt).toBeNull();
-    // Only the lifecycle field is written — never metric / encrypted text.
+    // S3 (§2.3.1): activating a plan the coach never dated defaults a review
+    // checkpoint ~7d out. Only lifecycle fields are written (status +
+    // reviewDate) — never metric / encrypted text (no mass assignment).
+    expect(new Set(Object.keys(arg.data))).toEqual(
+      new Set(["status", "reviewDate"]),
+    );
+    expect(arg.data.status).toBe("active");
+    expect(arg.data.reviewDate).toBeInstanceOf(Date);
+    const days =
+      ((arg.data.reviewDate as Date).getTime() - Date.now()) / 86_400_000;
+    expect(days).toBeGreaterThan(6.5);
+    expect(days).toBeLessThan(7.5);
+  });
+
+  it("does NOT clobber a review date the caller pinned on activate", async () => {
+    vi.mocked(prisma.coachPlan.updateMany).mockResolvedValue({
+      count: 1,
+    } as never);
+    vi.mocked(prisma.coachPlan.findFirst).mockResolvedValue({
+      id: "p1",
+      metric: "WEIGHT",
+      ifCueEncrypted: bytes("every morning"),
+      thenActionEncrypted: bytes("weigh in"),
+      targetEncrypted: null,
+      status: "active",
+      reviewDate: new Date("2026-08-01T00:00:00Z"),
+      createdAt: new Date("2026-06-01T00:00:00Z"),
+      updatedAt: new Date("2026-06-03T00:00:00Z"),
+    } as never);
+
+    const res = await callPatch({
+      status: "active",
+      reviewDate: "2026-08-01T00:00:00.000Z",
+    });
+    expect(res.status).toBe(200);
+    const arg = vi.mocked(prisma.coachPlan.updateMany).mock.calls[0]?.[0] as {
+      data: { reviewDate: Date };
+    };
+    // The pinned date is honoured verbatim, not the +7d default.
+    expect(arg.data.reviewDate.toISOString()).toBe("2026-08-01T00:00:00.000Z");
+  });
+
+  it("does NOT default a review date when marking a plan met", async () => {
+    vi.mocked(prisma.coachPlan.updateMany).mockResolvedValue({
+      count: 1,
+    } as never);
+    vi.mocked(prisma.coachPlan.findFirst).mockResolvedValue({
+      id: "p1",
+      metric: "WEIGHT",
+      ifCueEncrypted: bytes("every morning"),
+      thenActionEncrypted: bytes("weigh in"),
+      targetEncrypted: null,
+      status: "met",
+      reviewDate: null,
+      createdAt: new Date("2026-06-01T00:00:00Z"),
+      updatedAt: new Date("2026-06-03T00:00:00Z"),
+    } as never);
+
+    await callPatch({ status: "met" });
+    const arg = vi.mocked(prisma.coachPlan.updateMany).mock.calls[0]?.[0] as {
+      data: Record<string, unknown>;
+    };
     expect(Object.keys(arg.data)).toEqual(["status"]);
   });
 
diff --git a/src/app/api/measurements/batch/route.ts b/src/app/api/measurements/batch/route.ts
index 354c68d60..24e4e9131 100644
--- a/src/app/api/measurements/batch/route.ts
+++ b/src/app/api/measurements/batch/route.ts
@@ -64,6 +64,7 @@ import { deviceTypeEnum } from "@/lib/validations/source-priority";
 import { checkRateLimit } from "@/lib/rate-limit";
 import { enqueuePrDetection } from "@/lib/jobs/pr-detection";
 import { enqueueReminderSatisfy } from "@/lib/jobs/reminder-satisfy";
+import { maybeEnqueueMorningRefresh } from "@/lib/daily/morning-refresh-trigger";
 import { invalidateUserMeasurements } from "@/lib/cache/invalidate";
 import { invalidateStatusInsightsForTypes } from "@/lib/insights/comprehensive-generate";
 import {
@@ -764,6 +765,22 @@ async function postBatch(request: NextRequest): Promise<Response> {
     } catch (err) {
       console.warn("[measurements] rollup recompute failed", err);
     }
+
+    // S4 — Apple-Health sleep is the third sleep transport. If any SLEEP_DURATION
+    // row for last night just landed, kick the debounced morning refresh so the
+    // digest/score finalise with the current sleep. The trigger judges "last
+    // night" in the user's profile tz, so a historical Apple export replaying
+    // months of nights never re-triggers for an old night. Fire-and-forget.
+    void maybeEnqueueMorningRefresh(
+      user.id,
+      prepared
+        .filter((p) => p.row.type === "SLEEP_DURATION")
+        .map((p) =>
+          p.row.measuredAt instanceof Date
+            ? p.row.measuredAt
+            : new Date(p.row.measuredAt as string),
+        ),
+    ).catch(() => {});
   }
 
   return apiSuccess({
diff --git a/src/components/daily/__tests__/today-hero.test.tsx b/src/components/daily/__tests__/today-hero.test.tsx
index a6591fe7d..fa43c9722 100644
--- a/src/components/daily/__tests__/today-hero.test.tsx
+++ b/src/components/daily/__tests__/today-hero.test.tsx
@@ -1,14 +1,20 @@
 import { describe, it, expect } from "vitest";
 import { renderToStaticMarkup } from "react-dom/server";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 
 import { I18nProvider } from "@/lib/i18n/context";
 import { TodayHero } from "../today-hero";
 import type { DailyDigest } from "@/lib/daily/digest";
 import type { PriorityItem } from "@/lib/daily/priority-item";
 
+// The hero now wires the coach check-in card's keep / let-go taps through
+// `useCoachCheckinAction`, so it needs a QueryClient in the tree.
 function render(node: React.ReactNode, locale: "en" | "de" = "en") {
+  const client = new QueryClient();
   return renderToStaticMarkup(
-    <I18nProvider initialLocale={locale}>{node}</I18nProvider>,
+    <QueryClientProvider client={client}>
+      <I18nProvider initialLocale={locale}>{node}</I18nProvider>
+    </QueryClientProvider>,
   );
 }
 
diff --git a/src/components/daily/today-hero.tsx b/src/components/daily/today-hero.tsx
index 34522a09c..f0d343225 100644
--- a/src/components/daily/today-hero.tsx
+++ b/src/components/daily/today-hero.tsx
@@ -36,9 +36,14 @@ import { ScoreRing } from "@/components/insights/derived/score-ring";
 import type { ScoreBand } from "@/components/insights/derived/band-tokens";
 import { ProseBlocks } from "@/components/insights/prose-blocks";
 import { PriorityCard } from "@/components/daily/priority-card";
+import { useCoachCheckinAction } from "@/hooks/use-coach-checkin";
 import { useTranslations } from "@/lib/i18n/context";
 import { cn } from "@/lib/utils";
-import type { DailyDigest } from "@/lib/daily/digest";
+import {
+  COACH_CHECKIN_KEEP_INTENT,
+  COACH_CHECKIN_LETGO_INTENT,
+  type DailyDigest,
+} from "@/lib/daily/digest";
 
 /** Format the server-computed score delta as a signed, muted chip string. */
 function formatDelta(
@@ -53,6 +58,21 @@ function formatDelta(
 
 export function TodayHero({ digest }: { digest: DailyDigest }) {
   const { t } = useTranslations();
+  const { keep, letGo } = useCoachCheckinAction();
+
+  // The coach check-in card's keep / let-go intents carry the plan id after the
+  // ":" (a closed two-intent allowlist); adjust is an href handled by the card
+  // as a <Link>, so it never lands here. Every other rail kind is pure
+  // navigation (dose / sync / preventive), so their taps never call this.
+  const handleAction = (intent: string) => {
+    const keepPrefix = `${COACH_CHECKIN_KEEP_INTENT}:`;
+    const letGoPrefix = `${COACH_CHECKIN_LETGO_INTENT}:`;
+    if (intent.startsWith(keepPrefix)) {
+      keep.mutate(intent.slice(keepPrefix.length));
+    } else if (intent.startsWith(letGoPrefix)) {
+      letGo.mutate(intent.slice(letGoPrefix.length));
+    }
+  };
 
   const hasScore = digest.score !== null;
   const hasItems = digest.worthALook.length > 0;
@@ -174,7 +194,11 @@ export function TodayHero({ digest }: { digest: DailyDigest }) {
             </h2>
             <div className="grid gap-3 sm:grid-cols-2 xl:grid-cols-3">
               {digest.worthALook.map((item, i) => (
-                <PriorityCard key={`${item.kind}-${i}`} item={item} />
+                <PriorityCard
+                  key={`${item.kind}-${i}`}
+                  item={item}
+                  onAction={handleAction}
+                />
               ))}
             </div>
           </div>
diff --git a/src/hooks/use-coach-checkin.ts b/src/hooks/use-coach-checkin.ts
new file mode 100644
index 000000000..b58f741f2
--- /dev/null
+++ b/src/hooks/use-coach-checkin.ts
@@ -0,0 +1,59 @@
+"use client";
+
+/**
+ * S3 — the coach check-in card's keep / let-go actions (§2.3).
+ *
+ * The Today rail surfaces a `coach_checkin` `PriorityItem` whose two mutating
+ * one-tap actions close the coach loop through the EXISTING plan-lifecycle
+ * route (`PATCH /api/coach/plans/[id]`) — no new backend surface:
+ *   - keep  → re-arm: status `active` + `reviewDate` pushed out one more cycle,
+ *             so the check-in comes back in a week rather than the same day;
+ *   - letGo → guilt-free retirement: status `abandoned`, a terminal, respected
+ *             outcome (the calm inversion of a streak). The card never nags.
+ *
+ * "Adjust" is navigation (an `href` into the coach) handled by `PriorityCard`
+ * as a `<Link>` — it never reaches this hook.
+ *
+ * Both invalidate the daily digest (so the acted-on card leaves the rail) and
+ * every plans-list slot (so the /coach/plans ledger stays in step). Keys route
+ * through the centralised factory — no bare arrays.
+ */
+import { useMutation, useQueryClient } from "@tanstack/react-query";
+
+import { apiPatch } from "@/lib/api/api-fetch";
+import { queryKeys } from "@/lib/query-keys";
+import { COACH_CHECKIN_REVIEW_DAYS } from "@/lib/daily/digest";
+
+export function useCoachCheckinAction() {
+  const queryClient = useQueryClient();
+  const invalidate = () => {
+    void queryClient.invalidateQueries({ queryKey: queryKeys.dailyDigest() });
+    void queryClient.invalidateQueries({ queryKey: queryKeys.coachPlansAll() });
+  };
+
+  const keep = useMutation({
+    mutationFn: async (planId: string) => {
+      const reviewDate = new Date(
+        Date.now() + COACH_CHECKIN_REVIEW_DAYS * 86_400_000,
+      ).toISOString();
+      await apiPatch(`/api/coach/plans/${encodeURIComponent(planId)}`, {
+        status: "active",
+        reviewDate,
+      });
+      return planId;
+    },
+    onSuccess: invalidate,
+  });
+
+  const letGo = useMutation({
+    mutationFn: async (planId: string) => {
+      await apiPatch(`/api/coach/plans/${encodeURIComponent(planId)}`, {
+        status: "abandoned",
+      });
+      return planId;
+    },
+    onSuccess: invalidate,
+  });
+
+  return { keep, letGo };
+}
diff --git a/src/lib/daily/__tests__/daily-briefing-push.test.ts b/src/lib/daily/__tests__/daily-briefing-push.test.ts
new file mode 100644
index 000000000..6aae8c602
--- /dev/null
+++ b/src/lib/daily/__tests__/daily-briefing-push.test.ts
@@ -0,0 +1,302 @@
+/**
+ * S5 — daily-briefing push decision seam + composer.
+ *
+ * Pins the once-per-day, opt-in-only, morning-window, non-alert contract of
+ * `maybeDispatchDailyBriefing` and the floor/lead composition of
+ * `buildDailyBriefingPush`, all without a DB / provider / boss.
+ */
+import { describe, it, expect, vi } from "vitest";
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import {
+  maybeDispatchDailyBriefing,
+  buildDailyBriefingPush,
+  digestHasSubstance,
+  type DailyBriefingDispatchDeps,
+} from "@/lib/daily/daily-briefing-push";
+import type { DailyDigest } from "@/lib/daily/digest";
+import { isUrgentPayload } from "@/lib/notifications/types";
+import { getServerTranslator } from "@/lib/i18n/server-translator";
+
+// 06:00Z → 08:00 in Europe/Berlin (summer) → inside the morning window AND the
+// fixed fallback hour. The tz-window cases move only this instant.
+const IN_WINDOW = new Date("2026-07-16T06:00:00Z");
+const BEFORE_WINDOW = new Date("2026-07-16T00:30:00Z"); // 02:30 Berlin
+const AFTER_WINDOW = new Date("2026-07-16T12:30:00Z"); // 14:30 Berlin
+
+function makeDigest(over: Partial<DailyDigest> = {}): DailyDigest {
+  return {
+    generatedAt: "2026-07-16T06:00:00.000Z",
+    phase: "final",
+    sleepPending: false,
+    score: { value: 82, band: "good", delta: 1 },
+    topSignal: null,
+    briefingLead: "Sleep looked solid last night.",
+    line: "Sleep looked solid last night.",
+    worthALook: [],
+    ...over,
+  };
+}
+
+function makePrisma(opts: {
+  user?: unknown;
+  optIn?: unknown;
+  lastOk?: { createdAt: Date } | null;
+}) {
+  const user =
+    opts.user === undefined
+      ? {
+          id: "u1",
+          timezone: "Europe/Berlin",
+          locale: "en",
+          morningDigestRefreshedOn: null,
+        }
+      : opts.user;
+  return {
+    user: { findUnique: vi.fn(async () => user) },
+    notificationPreference: {
+      findFirst: vi.fn(async () =>
+        opts.optIn === undefined ? { id: "pref1" } : opts.optIn,
+      ),
+    },
+    pushAttempt: { findFirst: vi.fn(async () => opts.lastOk ?? null) },
+  } as unknown as PrismaClient;
+}
+
+function makeDeps(
+  over: Partial<DailyBriefingDispatchDeps> = {},
+): DailyBriefingDispatchDeps & { dispatch: ReturnType<typeof vi.fn> } {
+  const dispatch = vi.fn(async () => ({
+    dispatched: true,
+    channelsAttempted: 1,
+    channelsSucceeded: 1,
+  }));
+  return {
+    dispatch,
+    loadDigest: async () => makeDigest(),
+    isModuleEnabled: async () => true,
+    ...over,
+  } as DailyBriefingDispatchDeps & { dispatch: ReturnType<typeof vi.fn> };
+}
+
+describe("buildDailyBriefingPush", () => {
+  const { t } = getServerTranslator("en");
+
+  it("uses the digest line verbatim as the body when the day is final", () => {
+    const digest = makeDigest({ line: "Pulse ran a touch high yesterday." });
+    const { title, body } = buildDailyBriefingPush(digest, t);
+    expect(body).toBe("Pulse ran a touch high yesterday.");
+    expect(title).toBe(t("daily.push.title"));
+  });
+
+  it("floor: a no-AI user (no briefing lead) still gets the deterministic line", () => {
+    // composeLine's floor already sits in `digest.line`; the push carries it
+    // unchanged, so a keyless self-hoster gets a first-class body.
+    const digest = makeDigest({
+      briefingLead: null,
+      topSignal: null,
+      line: "Your health score today is 82.",
+    });
+    const { body } = buildDailyBriefingPush(digest, t);
+    expect(body).toBe("Your health score today is 82.");
+  });
+
+  it("provisional: appends the honest sleep-pending wording", () => {
+    const digest = makeDigest({
+      sleepPending: true,
+      line: "Trends held steady this week.",
+    });
+    const { body } = buildDailyBriefingPush(digest, t);
+    expect(body).toContain("Trends held steady this week.");
+    expect(body).not.toBe("Trends held steady this week.");
+  });
+});
+
+describe("digestHasSubstance", () => {
+  it("is false for an empty account (score/lead/signal all null, no items)", () => {
+    expect(
+      digestHasSubstance(
+        makeDigest({
+          score: null,
+          briefingLead: null,
+          topSignal: null,
+          worthALook: [],
+        }),
+      ),
+    ).toBe(false);
+  });
+
+  it("is true when a score is present", () => {
+    expect(
+      digestHasSubstance(
+        makeDigest({ briefingLead: null, topSignal: null, worthALook: [] }),
+      ),
+    ).toBe(true);
+  });
+});
+
+describe("maybeDispatchDailyBriefing", () => {
+  it("opted-in + substantive digest + in window → exactly one DAILY_BRIEFING dispatch", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+
+    expect(result).toBe("sent");
+    expect(deps.dispatch).toHaveBeenCalledTimes(1);
+    const payload = deps.dispatch.mock.calls[0][0];
+    expect(payload.eventType).toBe("DAILY_BRIEFING");
+    expect(payload.metadata?.url).toBe("/");
+  });
+
+  it("never routes as an alert: the payload is non-urgent", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps();
+    await maybeDispatchDailyBriefing(prisma, "u1", IN_WINDOW, deps);
+    const payload = deps.dispatch.mock.calls[0][0];
+    // No urgent flag AND not MEDICATION_REMINDER → the urgency classifier is
+    // false, so it can never escalate to a time-sensitive / Focus-bypass send.
+    expect(payload.urgent).toBeUndefined();
+    expect(isUrgentPayload(payload)).toBe(false);
+  });
+
+  it("opted-out (no enabled preference) → no dispatch", async () => {
+    const prisma = makePrisma({ optIn: null });
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("opted-out");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("no digest substance → no dispatch", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps({
+      loadDigest: async () =>
+        makeDigest({
+          score: null,
+          briefingLead: null,
+          topSignal: null,
+          worthALook: [],
+        }),
+    });
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("no-digest");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("insights module off → no dispatch", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps({ isModuleEnabled: async () => false });
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("module-off");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("frequency cap: an ok ledger row earlier the SAME local day suppresses the second push", async () => {
+    const prisma = makePrisma({
+      // 04:00Z → 06:00 Berlin, same local day as the 08:00 attempt.
+      lastOk: { createdAt: new Date("2026-07-16T04:00:00Z") },
+    });
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("suppressed-frequency");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("frequency cap: an ok ledger row on the PREVIOUS local day does not suppress", async () => {
+    const prisma = makePrisma({
+      // 20:00Z on the 15th → 22:00 Berlin on the 15th → previous local day.
+      lastOk: { createdAt: new Date("2026-07-15T20:00:00Z") },
+    });
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("sent");
+    expect(deps.dispatch).toHaveBeenCalledTimes(1);
+  });
+
+  it("tz timing: before the local morning window → no dispatch", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      BEFORE_WINDOW,
+      deps,
+    );
+    expect(result).toBe("outside-window");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("tz timing: after the local morning window → no dispatch", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      AFTER_WINDOW,
+      deps,
+    );
+    expect(result).toBe("outside-window");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+
+  it("no channel delivered → no-channel (ledger slot left free)", async () => {
+    const prisma = makePrisma({});
+    const deps = makeDeps({
+      dispatch: vi.fn(async () => ({
+        dispatched: false,
+        channelsAttempted: 0,
+        channelsSucceeded: 0,
+      })) as unknown as DailyBriefingDispatchDeps["dispatch"],
+    });
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("no-channel");
+  });
+
+  it("missing user → missing-user, never throws", async () => {
+    const prisma = makePrisma({ user: null });
+    const deps = makeDeps();
+    const result = await maybeDispatchDailyBriefing(
+      prisma,
+      "u1",
+      IN_WINDOW,
+      deps,
+    );
+    expect(result).toBe("missing-user");
+    expect(deps.dispatch).not.toHaveBeenCalled();
+  });
+});
diff --git a/src/lib/daily/__tests__/digest.test.ts b/src/lib/daily/__tests__/digest.test.ts
index 95d2b32d1..b98156f08 100644
--- a/src/lib/daily/__tests__/digest.test.ts
+++ b/src/lib/daily/__tests__/digest.test.ts
@@ -5,7 +5,12 @@ import type { DailyBriefing } from "@/lib/ai/schema";
 import type { MedsTodayBlock } from "@/lib/dashboard/meds-today";
 import {
   buildDailyDigest,
+  COACH_CHECKIN_KEEP_INTENT,
+  COACH_CHECKIN_LETGO_INTENT,
+  COACH_CHECKIN_RESURFACE_DAYS,
+  COACH_CHECKIN_REVIEW_DAYS,
   MAX_WORTH_A_LOOK,
+  type DailyDigestCoachPlan,
   type DailyDigestInput,
 } from "@/lib/daily/digest";
 
@@ -48,8 +53,28 @@ function input(over: Partial<DailyDigestInput> = {}): DailyDigestInput {
     briefing,
     medsToday: meds(),
     sleepLastSeenDaysAgo: 0,
+    morningRefreshedToday: false,
     syncIssues: [],
     preventiveDue: [],
+    coachPlans: [],
+    ...over,
+  };
+}
+
+const DAY = 86_400_000;
+
+function plan(over: Partial<DailyDigestCoachPlan> = {}): DailyDigestCoachPlan {
+  // Default: an active plan whose defaulted review (createdAt + 7d) is due.
+  const createdAt = new Date(
+    NOW.getTime() - (COACH_CHECKIN_REVIEW_DAYS + 1) * DAY,
+  );
+  return {
+    id: "p1",
+    status: "active",
+    reviewDate: null,
+    createdAt,
+    updatedAt: createdAt,
+    planText: "every morning → weigh in",
     ...over,
   };
 }
@@ -127,6 +152,34 @@ describe("buildDailyDigest — freshness (provisional/final)", () => {
     expect(d.phase).toBe("final");
     expect(d.sleepPending).toBe(false);
   });
+
+  it("the morning-refresh marker finalises the day even while the snapshot's sleep last-seen is still stale (S4 fast path)", () => {
+    // Sleep last-seen still lags at 1 day (snapshot cache not yet expired), but
+    // the sleep-arrival refresh has stamped the marker for today — the digest
+    // must read `final` immediately off the authoritative marker.
+    const provisional = buildDailyDigest(
+      input({ sleepLastSeenDaysAgo: 1, morningRefreshedToday: false }),
+      t,
+    );
+    expect(provisional.phase).toBe("provisional");
+    expect(provisional.sleepPending).toBe(true);
+
+    const finalised = buildDailyDigest(
+      input({ sleepLastSeenDaysAgo: 1, morningRefreshedToday: true }),
+      t,
+    );
+    expect(finalised.phase).toBe("final");
+    expect(finalised.sleepPending).toBe(false);
+  });
+
+  it("stays provisional when sleep never arrives (no marker, no reading)", () => {
+    const d = buildDailyDigest(
+      input({ sleepLastSeenDaysAgo: null, morningRefreshedToday: false }),
+      t,
+    );
+    expect(d.phase).toBe("provisional");
+    expect(d.sleepPending).toBe(true);
+  });
 });
 
 describe("buildDailyDigest — worth-a-look rail item builders", () => {
@@ -233,3 +286,130 @@ describe("buildDailyDigest — worth-a-look rail item builders", () => {
     expect(d.worthALook).toEqual([]);
   });
 });
+
+describe("buildDailyDigest — coach check-in (S3)", () => {
+  function checkin(d: ReturnType<typeof buildDailyDigest>) {
+    return d.worthALook.find((i) => i.kind === "coach_checkin");
+  }
+
+  it("emits a check-in when an active plan's defaulted review has come due", () => {
+    const d = buildDailyDigest(input({ coachPlans: [plan()] }), t);
+    const item = checkin(d);
+    expect(item).toBeDefined();
+    expect(item?.status).toBe("info");
+    expect(item?.moduleKey).toBe("coach");
+    expect(item?.actions).toHaveLength(3);
+    // The plan's own words are echoed in the body.
+    expect(item?.body).toContain("every morning → weigh in");
+    // Keep / let-go carry the plan id; adjust is a plain navigation href.
+    expect(item?.actions[0].intent).toBe(`${COACH_CHECKIN_KEEP_INTENT}:p1`);
+    expect(item?.actions[1].href).toBe("/coach");
+    expect(item?.actions[2].intent).toBe(`${COACH_CHECKIN_LETGO_INTENT}:p1`);
+  });
+
+  it("emits a review-due check-in from a plan's pinned reviewDate", () => {
+    const reviewDate = new Date(NOW.getTime() - DAY);
+    const d = buildDailyDigest(
+      input({ coachPlans: [plan({ reviewDate })] }),
+      t,
+    );
+    expect(checkin(d)).toBeDefined();
+  });
+
+  it("emits a check-in for a reviewed plan (post-sweep read-back state)", () => {
+    const d = buildDailyDigest(
+      input({
+        coachPlans: [
+          plan({
+            status: "reviewed",
+            reviewDate: null,
+            updatedAt: new Date(NOW.getTime() - DAY),
+          }),
+        ],
+      }),
+      t,
+    );
+    expect(checkin(d)).toBeDefined();
+  });
+
+  it("falls back to a generic body when the plan text is undecryptable", () => {
+    const d = buildDailyDigest(
+      input({ coachPlans: [plan({ planText: null })] }),
+      t,
+    );
+    expect(checkin(d)?.body).toBe(
+      "It's been about a week since you set this plan — keep it, adjust it, or let it go. No pressure either way.",
+    );
+  });
+
+  it("does NOT emit a check-in before the review is due", () => {
+    const d = buildDailyDigest(
+      input({
+        coachPlans: [plan({ reviewDate: new Date(NOW.getTime() + DAY) })],
+      }),
+      t,
+    );
+    expect(checkin(d)).toBeUndefined();
+  });
+
+  it("does NOT emit a check-in when the coach module is off", () => {
+    const d = buildDailyDigest(
+      input({ modules: { coach: false }, coachPlans: [plan()] }),
+      t,
+    );
+    expect(checkin(d)).toBeUndefined();
+  });
+
+  it("emits none when there are no standing plans", () => {
+    const d = buildDailyDigest(input({ coachPlans: [] }), t);
+    expect(checkin(d)).toBeUndefined();
+  });
+
+  it("stops resurfacing after the resurface window (quiet retirement)", () => {
+    const stale = new Date(
+      NOW.getTime() - (COACH_CHECKIN_RESURFACE_DAYS + 2) * DAY,
+    );
+    const d = buildDailyDigest(
+      input({ coachPlans: [plan({ reviewDate: stale })] }),
+      t,
+    );
+    expect(checkin(d)).toBeUndefined();
+  });
+
+  it("caps at ONE check-in per day, surfacing the earliest-due plan", () => {
+    const older = new Date(NOW.getTime() - 5 * DAY);
+    const newer = new Date(NOW.getTime() - 1 * DAY);
+    const d = buildDailyDigest(
+      input({
+        coachPlans: [
+          plan({ id: "recent", reviewDate: newer }),
+          plan({ id: "oldest", reviewDate: older }),
+        ],
+      }),
+      t,
+    );
+    const items = d.worthALook.filter((i) => i.kind === "coach_checkin");
+    expect(items).toHaveLength(1);
+    expect(items[0].actions[0].intent).toBe(
+      `${COACH_CHECKIN_KEEP_INTENT}:oldest`,
+    );
+  });
+
+  it("does not displace an overdue dose from the bounded rail", () => {
+    const d = buildDailyDigest(
+      input({
+        medsToday: meds({ nextDueOverdue: true, nextDueMedicationName: "X" }),
+        syncIssues: [
+          { integration: "withings", state: "error_reauth" },
+          { integration: "moodlog", state: "parked" },
+        ],
+        coachPlans: [plan()],
+      }),
+      t,
+    );
+    // dose + 2 sync fill the cap; the check-in waits for a following day.
+    expect(d.worthALook).toHaveLength(MAX_WORTH_A_LOOK);
+    expect(checkin(d)).toBeUndefined();
+    expect(d.worthALook[0].kind).toBe("dose_window");
+  });
+});
diff --git a/src/lib/daily/__tests__/morning-refresh-trigger.test.ts b/src/lib/daily/__tests__/morning-refresh-trigger.test.ts
new file mode 100644
index 000000000..17c206559
--- /dev/null
+++ b/src/lib/daily/__tests__/morning-refresh-trigger.test.ts
@@ -0,0 +1,137 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+// The queue send is inspected through a fake global boss so the debounce key +
+// payload can be asserted without a running worker.
+const sendMock = vi.fn();
+let bossInstance: { send: typeof sendMock } | null = { send: sendMock };
+vi.mock("@/lib/jobs/boss-instance", () => ({
+  getGlobalBoss: () => bossInstance,
+}));
+
+// Module gate + tz resolver are stubbed; the tz FORMAT helpers stay real so the
+// "last night in the profile tz" logic is exercised for real.
+const resolveModuleMapMock = vi.fn(
+  async (): Promise<Record<string, boolean>> => ({}),
+);
+vi.mock("@/lib/modules/gate", () => ({
+  resolveModuleMap: () => resolveModuleMapMock(),
+}));
+
+let tz = "America/Los_Angeles";
+vi.mock("@/lib/tz/resolver", () => ({
+  resolveUserTimezone: async () => tz,
+}));
+
+const userFindUniqueMock = vi.fn(
+  async (): Promise<{ morningDigestRefreshedOn: string | null } | null> => ({
+    morningDigestRefreshedOn: null,
+  }),
+);
+vi.mock("@/lib/db", () => ({
+  prisma: { user: { findUnique: () => userFindUniqueMock() } },
+}));
+
+import {
+  isLastNightLocal,
+  maybeEnqueueMorningRefresh,
+} from "../morning-refresh-trigger";
+
+describe("isLastNightLocal", () => {
+  it("counts a segment whose LOCAL date is yesterday but whose UTC date is today", () => {
+    // LA (UTC-7 in July). now = 07:00 local on the 16th.
+    const now = new Date("2026-07-16T14:00:00Z");
+    // 06:00Z = 23:00 local on the 15th → yesterday LOCALLY, but the 16th in UTC.
+    const measuredAt = new Date("2026-07-16T06:00:00Z");
+    expect(isLastNightLocal(measuredAt, now, "America/Los_Angeles")).toBe(true);
+  });
+
+  it("counts a this-morning segment across the UTC date line (Auckland)", () => {
+    // Auckland (UTC+12). now = 12:30 local on the 16th; the segment is 06:00
+    // local on the 16th (this morning) but 15th in UTC — a naive UTC-day check
+    // would wrongly reject it.
+    const now = new Date("2026-07-16T00:30:00Z");
+    const measuredAt = new Date("2026-07-15T18:00:00Z");
+    expect(isLastNightLocal(measuredAt, now, "Pacific/Auckland")).toBe(true);
+  });
+
+  it("rejects an old backfilled segment", () => {
+    const now = new Date("2026-07-16T14:00:00Z");
+    const measuredAt = new Date("2026-07-10T06:00:00Z");
+    expect(isLastNightLocal(measuredAt, now, "America/Los_Angeles")).toBe(
+      false,
+    );
+  });
+
+  it("rejects a future-dated sample", () => {
+    const now = new Date("2026-07-16T14:00:00Z");
+    const measuredAt = new Date("2026-07-16T20:00:00Z");
+    expect(isLastNightLocal(measuredAt, now, "America/Los_Angeles")).toBe(
+      false,
+    );
+  });
+});
+
+describe("maybeEnqueueMorningRefresh", () => {
+  const NOW = new Date("2026-07-16T14:00:00Z"); // 07:00 on the 16th in LA
+  const lastNight = new Date("2026-07-16T06:00:00Z"); // 23:00 on the 15th, LA
+  const oldNight = new Date("2026-07-10T06:00:00Z");
+
+  beforeEach(() => {
+    sendMock.mockReset();
+    bossInstance = { send: sendMock };
+    tz = "America/Los_Angeles";
+    resolveModuleMapMock.mockReset();
+    resolveModuleMapMock.mockResolvedValue({});
+    userFindUniqueMock.mockReset();
+    userFindUniqueMock.mockResolvedValue({ morningDigestRefreshedOn: null });
+  });
+
+  it("enqueues exactly one debounced refresh for many last-night samples", async () => {
+    await maybeEnqueueMorningRefresh(
+      "u1",
+      [lastNight, lastNight, lastNight, lastNight],
+      NOW,
+    );
+    expect(sendMock).toHaveBeenCalledTimes(1);
+    const [queue, payload, opts] = sendMock.mock.calls[0]!;
+    expect(queue).toBe("morning-digest-refresh");
+    // The debounce key + payload date are the user's LOCAL date (the 16th),
+    // not the UTC date of the samples.
+    expect(payload).toMatchObject({ userId: "u1", localDate: "2026-07-16" });
+    expect((opts as { singletonKey: string }).singletonKey).toBe(
+      "morning-refresh:u1:2026-07-16",
+    );
+  });
+
+  it("does NOT trigger for an old/backfilled sleep only", async () => {
+    await maybeEnqueueMorningRefresh("u1", [oldNight, oldNight], NOW);
+    expect(sendMock).not.toHaveBeenCalled();
+  });
+
+  it("no-ops when the sleep module is off", async () => {
+    resolveModuleMapMock.mockResolvedValue({ sleep: false });
+    await maybeEnqueueMorningRefresh("u1", [lastNight], NOW);
+    expect(sendMock).not.toHaveBeenCalled();
+  });
+
+  it("skips the enqueue when the day is already finalised (marker == today)", async () => {
+    userFindUniqueMock.mockResolvedValue({
+      morningDigestRefreshedOn: "2026-07-16",
+    });
+    await maybeEnqueueMorningRefresh("u1", [lastNight], NOW);
+    expect(sendMock).not.toHaveBeenCalled();
+  });
+
+  it("no-ops with no sleep samples", async () => {
+    await maybeEnqueueMorningRefresh("u1", [], NOW);
+    expect(sendMock).not.toHaveBeenCalled();
+  });
+
+  it("never throws when a dependency fails", async () => {
+    resolveModuleMapMock.mockRejectedValue(new Error("db down"));
+    await expect(
+      maybeEnqueueMorningRefresh("u1", [lastNight], NOW),
+    ).resolves.toBeUndefined();
+    expect(sendMock).not.toHaveBeenCalled();
+  });
+});
diff --git a/src/lib/daily/daily-briefing-push.ts b/src/lib/daily/daily-briefing-push.ts
new file mode 100644
index 000000000..3f9e12408
--- /dev/null
+++ b/src/lib/daily/daily-briefing-push.ts
@@ -0,0 +1,255 @@
+/**
+ * S5 — the daily briefing push (§2.2).
+ *
+ * A CALM, once-per-day morning nudge that rides the EXISTING notification
+ * cascade (`dispatchNotification` → APNs → Telegram → ntfy → Webhook → Email →
+ * Web Push), inheriting the hard-reject classification and the `push_attempts`
+ * ledger for free. It reads the ALREADY-CACHED daily digest (S1 `buildDailyDigest`
+ * via `loadDailyDigest`) — it NEVER makes a fresh AI/provider call (the
+ * warm-on-mount ban extends to warm-on-dispatch), so a keyless self-hoster gets
+ * a first-class push from the digest's deterministic `line` floor.
+ *
+ * This module owns ONE decision seam — `maybeDispatchDailyBriefing` — that both
+ * triggers funnel through: the S4 morning-refresh finalisation hook (event-
+ * driven, on sleep arrival) and the fixed local-morning fallback cron
+ * (`@/lib/jobs/daily-briefing`). Whichever fires first that morning writes the
+ * `ok` ledger row; the frequency-cap check suppresses the second — one push per
+ * user per local day, no "you haven't opened the app" second push, ever.
+ *
+ * Privacy + calm posture (load-bearing): the body is `digest.line`, which is
+ * non-clinical by construction (a briefing lead sentence, the top signal's
+ * headline, a 0–100 score statement, or the honest all-clear — never a raw BP /
+ * glucose figure). It is dispatched NON-URGENT, so it never escalates to a
+ * Focus-bypassing / time-sensitive delivery — a concerning reading always stays
+ * on `MEASUREMENT_ANOMALY`, never here. It fires ONLY inside a local morning
+ * window, which is the quiet-hours guarantee for this nudge.
+ */
+import type { User } from "@/generated/prisma/client";
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import { annotate, getEvent } from "@/lib/logging/context";
+import { defaultLocale, locales, type Locale } from "@/lib/i18n/config";
+import { getServerTranslator } from "@/lib/i18n/server-translator";
+import type { ServerTranslator } from "@/lib/i18n/server-translator";
+import { isModuleEnabled } from "@/lib/modules/gate";
+import { wallClockInTz } from "@/lib/tz/wall-clock";
+import { userDayKey } from "@/lib/tz/format";
+import { dispatchNotification } from "@/lib/notifications/dispatcher";
+import { loadDailyDigest } from "@/lib/daily/load-digest";
+import type { DailyDigest } from "@/lib/daily/digest";
+
+/**
+ * The local-morning window this nudge may fire in, [earliest, latest). Both the
+ * sleep-arrival finalisation hook and the fixed fallback slot are gated by it,
+ * so a late-afternoon sleep sync (a full re-sync, a device that reconnected
+ * hours after waking) can never fire a "morning briefing" at an odd hour —
+ * outside the window the day simply carries no push (never-nag). 05:00 is the
+ * earliest a genuine wake-time sleep sync lands; noon is a firm ceiling.
+ */
+export const DAILY_BRIEFING_MORNING_EARLIEST_HOUR = 5;
+export const DAILY_BRIEFING_MORNING_LATEST_HOUR = 12;
+
+/**
+ * The fixed local hour the fallback cron dispatches at when sleep never
+ * arrived (so the finalisation hook never fired). Inside the window above; the
+ * earlier part of the window is left for the event-driven finalisation push, so
+ * a user whose sleep synced on wake gets the warmer FINAL digest first and the
+ * ledger suppresses this slot.
+ */
+export const DAILY_BRIEFING_FALLBACK_HOUR = 8;
+
+/** The dashboard / Today view the push deep-links to (same-origin path). */
+const DAILY_BRIEFING_DEEP_LINK = "/";
+
+/**
+ * The outcome of one dispatch attempt — one value per branch so the wide-event
+ * annotation (and the tests) can assert the exact decision the seam took.
+ */
+export type DailyBriefingDispatchResult =
+  | "sent"
+  | "suppressed-frequency"
+  | "no-digest"
+  | "opted-out"
+  | "module-off"
+  | "outside-window"
+  | "no-channel"
+  | "missing-user"
+  | "error";
+
+export interface DailyBriefingDispatchDeps {
+  dispatch?: typeof dispatchNotification;
+  loadDigest?: (user: User, now: Date) => Promise<DailyDigest>;
+  isModuleEnabled?: typeof isModuleEnabled;
+}
+
+function resolveLocale(locale: string | null | undefined): Locale {
+  return locales.includes(locale as Locale)
+    ? (locale as Locale)
+    : defaultLocale;
+}
+
+/**
+ * A digest is "substantive" — worth a morning push — when it carries a score, a
+ * briefing lead, a top signal, OR a worth-a-look item. A brand-new / empty
+ * account whose only line would be the generic all-clear is NOT nudged every
+ * morning (the never-nag rule); it falls through to the `no-digest` skip.
+ */
+export function digestHasSubstance(digest: DailyDigest): boolean {
+  return (
+    digest.score !== null ||
+    digest.briefingLead !== null ||
+    digest.topSignal !== null ||
+    digest.worthALook.length > 0
+  );
+}
+
+/**
+ * Compose the push title + body from the cached digest. The body IS
+ * `digest.line` — the cached briefing lead when present, else the deterministic
+ * floor — so a no-AI self-hoster still gets a meaningful push. When the day is
+ * still provisional (last night's sleep not yet in), the honest sleep-pending
+ * wording is appended so the read is never silently presented as final.
+ */
+export function buildDailyBriefingPush(
+  digest: DailyDigest,
+  t: ServerTranslator["t"],
+): { title: string; body: string } {
+  const title = t("daily.push.title");
+  const body = digest.sleepPending
+    ? t("daily.push.bodyProvisional", { line: digest.line })
+    : digest.line;
+  return { title, body };
+}
+
+/**
+ * The ONE dispatch-decision seam. Fully fault-isolated — every failure returns
+ * a result value rather than throwing, so neither the sleep-arrival hook nor
+ * the cron tick can be broken by it.
+ *
+ * Gates, cheapest first:
+ *   1. user missing            → `missing-user`
+ *   2. no opt-in (default OFF) → `opted-out` (no enabled DAILY_BRIEFING pref)
+ *   3. outside morning window  → `outside-window`
+ *   4. insights module off     → `module-off`
+ *   5. already pushed today    → `suppressed-frequency` (push_attempts ledger)
+ *   6. digest not substantive  → `no-digest`
+ *   7. dispatch; no channel    → `no-channel`; else `sent`.
+ */
+export async function maybeDispatchDailyBriefing(
+  prisma: PrismaClient,
+  userId: string,
+  now: Date,
+  deps: DailyBriefingDispatchDeps = {},
+): Promise<DailyBriefingDispatchResult> {
+  const dispatch = deps.dispatch ?? dispatchNotification;
+  const loadDigest = deps.loadDigest ?? loadDailyDigest;
+  const moduleGate = deps.isModuleEnabled ?? isModuleEnabled;
+
+  try {
+    const user = await prisma.user.findUnique({ where: { id: userId } });
+    if (!user) {
+      annotate({ action: { name: "daily.briefing_push.missing_user" } });
+      return "missing-user";
+    }
+
+    // Opt-in: DAILY_BRIEFING defaults OFF, so an opted-in user is one with at
+    // least one enabled per-channel preference row. Silence until then.
+    const optIn = await prisma.notificationPreference.findFirst({
+      where: {
+        eventType: "DAILY_BRIEFING",
+        enabled: true,
+        channel: { userId },
+      },
+      select: { id: true },
+    });
+    if (!optIn) {
+      annotate({ action: { name: "daily.briefing_push.opted_out" } });
+      return "opted-out";
+    }
+
+    const tz = user.timezone || "Europe/Berlin";
+    const { hour } = wallClockInTz(now, tz);
+    if (
+      hour < DAILY_BRIEFING_MORNING_EARLIEST_HOUR ||
+      hour >= DAILY_BRIEFING_MORNING_LATEST_HOUR
+    ) {
+      annotate({
+        action: { name: "daily.briefing_push.outside_window" },
+        meta: { local_hour: hour },
+      });
+      return "outside-window";
+    }
+
+    // Insights is the digest's home module; a user who turned it off gets no
+    // digest surfaces at all, so no morning push either.
+    if (!(await moduleGate(userId, "insights"))) {
+      annotate({ action: { name: "daily.briefing_push.module_off" } });
+      return "module-off";
+    }
+
+    // One per user per LOCAL day. Anchored on the `push_attempts` ledger the
+    // senders already write (`ok` on a successful delivery), exactly like the
+    // coach-nudge cap: whichever trigger fired first this morning left an `ok`
+    // row, so the second is suppressed. Compared by local day-key (DST-safe),
+    // so the day boundary is the user's, not UTC's.
+    const lastOk = await prisma.pushAttempt.findFirst({
+      where: { userId, eventType: "DAILY_BRIEFING", result: "ok" },
+      orderBy: { createdAt: "desc" },
+      select: { createdAt: true },
+    });
+    if (lastOk && userDayKey(lastOk.createdAt, tz) === userDayKey(now, tz)) {
+      annotate({
+        action: { name: "daily.briefing_push.suppressed_frequency" },
+      });
+      return "suppressed-frequency";
+    }
+
+    const digest = await loadDigest(user, now);
+    if (!digestHasSubstance(digest)) {
+      annotate({ action: { name: "daily.briefing_push.no_digest" } });
+      return "no-digest";
+    }
+
+    const { t } = getServerTranslator(resolveLocale(user.locale));
+    const { title, body } = buildDailyBriefingPush(digest, t);
+
+    const outcome = await dispatch({
+      // NON-URGENT by construction: no `urgent` flag, and DAILY_BRIEFING is not
+      // MEDICATION_REMINDER, so `isUrgentPayload` is false — this never
+      // escalates to a time-sensitive / Focus-bypassing delivery. It is a calm
+      // nudge, never the anomaly channel.
+      eventType: "DAILY_BRIEFING",
+      userId,
+      title,
+      message: body,
+      metadata: {
+        url: DAILY_BRIEFING_DEEP_LINK,
+        phase: digest.phase,
+        scheduledAt: now.toISOString(),
+      },
+    });
+
+    if (!outcome.dispatched) {
+      // No channel delivered — leave the ledger slot free (no `ok` row) so a
+      // later trigger this morning can still succeed once a channel recovers.
+      annotate({ action: { name: "daily.briefing_push.no_channel" } });
+      return "no-channel";
+    }
+
+    annotate({
+      action: { name: "daily.briefing_push.sent" },
+      meta: {
+        daily_briefing_phase: digest.phase,
+        daily_briefing_sleep_pending: digest.sleepPending,
+      },
+    });
+    return "sent";
+  } catch (err) {
+    getEvent()?.addWarning(
+      `daily-briefing push failed for ${userId}: ${
+        err instanceof Error ? err.message : String(err)
+      }`,
+    );
+    return "error";
+  }
+}
diff --git a/src/lib/daily/digest.ts b/src/lib/daily/digest.ts
index 6765aba33..4f4ff9753 100644
--- a/src/lib/daily/digest.ts
+++ b/src/lib/daily/digest.ts
@@ -34,6 +34,36 @@ export const MAX_WORTH_A_LOOK = 3;
 /** Trim a briefing-lead sentence to a lock-screen-friendly length. */
 const MAX_LINE_LENGTH = 160;
 
+const MS_PER_DAY = 86_400_000;
+
+/**
+ * S3 — coach check-in loop (§2.3). Days added to a plan's activation when the
+ * coach set no review date: every accepted plan earns a check-in, not only the
+ * ones the coach explicitly dated. The PATCH-to-`active` route defaults
+ * `reviewDate` to `+COACH_CHECKIN_REVIEW_DAYS`; this constant is the one source.
+ */
+export const COACH_CHECKIN_REVIEW_DAYS = 7;
+
+/**
+ * After a check-in comes due, it resurfaces for at most this many days before
+ * it stops appearing on its own — the calm inversion of a streak (§2.3.3): an
+ * ignored check-in sits quiet after ~two cycles rather than nagging forever,
+ * and the plan's status is NEVER changed behind the user's back. Only an
+ * explicit keep / let-go moves the plan; silence just retires the card.
+ */
+export const COACH_CHECKIN_RESURFACE_DAYS = 14;
+
+/**
+ * Closed allowlist of the check-in card's two MUTATING intents (§2.3.2). The
+ * generic, id-less `PriorityCard` forwards only a single `intent` string, so
+ * the target plan id is appended after the ":" — the Today handler recovers it
+ * and PATCHes the existing plan-lifecycle route. "Adjust" is navigation (an
+ * `href` into the coach), so it carries no plan id and never mutates here.
+ */
+export const COACH_CHECKIN_KEEP_INTENT = "coach.checkin.keep";
+export const COACH_CHECKIN_LETGO_INTENT = "coach.checkin.letGo";
+export const COACH_CHECKIN_ADJUST_INTENT = "coach.checkin.adjust";
+
 type Translate = ServerTranslator["t"];
 
 /** Module map in the registry's DISABLED-allowlist shape (missing = enabled). */
@@ -62,6 +92,25 @@ export interface DailyDigestPreventiveDue {
   label: string;
 }
 
+/**
+ * A standing coach plan the IO seam offers as a check-in candidate (§2.3). The
+ * builder computes due-ness deterministically from the plain columns — it never
+ * needs a fresh AI call, reading only the existing plan lifecycle. `planText`
+ * is the plan's own if→then prose (decrypted fault-isolated in the IO seam, or
+ * null when its key rotated out) so the card can echo the user's own words.
+ */
+export interface DailyDigestCoachPlan {
+  id: string;
+  /** Lifecycle status — only `active` / `reviewed` reach the builder. */
+  status: string;
+  /** The coach-pinned review checkpoint, or null (then defaulted, see below). */
+  reviewDate: Date | null;
+  createdAt: Date;
+  updatedAt: Date;
+  /** Decrypted "if cue → then action" prose, or null when undecryptable. */
+  planText: string | null;
+}
+
 /** The fully-resolved, IO-free input the composer folds into a digest. */
 export interface DailyDigestInput {
   now: Date;
@@ -72,8 +121,20 @@ export interface DailyDigestInput {
   medsToday: MedsTodayBlock;
   /** Days since the freshest sleep reading; null when never recorded. */
   sleepLastSeenDaysAgo: number | null;
+  /**
+   * S4 freshness (§E) — whether the event-driven morning refresh has already
+   * run for the user's CURRENT local date. Derived in the IO seam by comparing
+   * `User.morningDigestRefreshedOn` against today's local date (profile tz):
+   * `true` once last night's sleep arrived AND the sleep-dependent generation
+   * was re-run with it. This is the authoritative `final` signal — it flips
+   * immediately on the refresh, before the snapshot cache (which feeds
+   * `sleepLastSeenDaysAgo`) has expired.
+   */
+  morningRefreshedToday: boolean;
   syncIssues: DailyDigestSyncIssue[];
   preventiveDue: DailyDigestPreventiveDue[];
+  /** Standing coach plans (active + reviewed) — check-in candidates (§2.3). */
+  coachPlans: DailyDigestCoachPlan[];
 }
 
 export interface DailyDigest {
@@ -195,6 +256,86 @@ function buildPreventiveCareItem(
   };
 }
 
+/**
+ * The instant a plan's check-in came due (§2.3). A coach-pinned `reviewDate`
+ * wins. Otherwise, a `reviewed` plan lost its `reviewDate` to the daily sweep
+ * when the read-back fired, so its `updatedAt` (the flip moment) is when the
+ * check-in came due. A legacy `active` plan the coach never dated defaults to
+ * activation + `COACH_CHECKIN_REVIEW_DAYS` — the same rule the PATCH route now
+ * writes forward, applied read-side for plans that predate it.
+ */
+function checkinDueAt(plan: DailyDigestCoachPlan): number {
+  if (plan.reviewDate) return plan.reviewDate.getTime();
+  if (plan.status === "reviewed") return plan.updatedAt.getTime();
+  return plan.createdAt.getTime() + COACH_CHECKIN_REVIEW_DAYS * MS_PER_DAY;
+}
+
+/**
+ * A plan is check-in-due when its due instant has passed AND it is still within
+ * the resurface window. Past the window the card retires quietly — the plan's
+ * status is untouched (never abandoned behind the user's back); a keep re-arms
+ * it, a let-go ends it, silence just stops the card.
+ */
+function isCheckinDue(plan: DailyDigestCoachPlan, now: number): boolean {
+  const dueAt = checkinDueAt(plan);
+  if (dueAt > now) return false;
+  return now - dueAt <= COACH_CHECKIN_RESURFACE_DAYS * MS_PER_DAY;
+}
+
+/**
+ * The one coach check-in card (§2.3). Gated on the `coach` module. Capped at
+ * ONE per day across every plan: the earliest-due check-in wins, the rest wait
+ * for a following day. Reads existing plan state only — never a fresh AI call.
+ * Three one-tap actions map to the plan lifecycle: keep (re-arm), adjust
+ * (navigate into the coach), let go (guilt-free retirement).
+ */
+function buildCoachCheckinItem(
+  plans: DailyDigestCoachPlan[],
+  modules: DigestModuleMap,
+  now: Date,
+  t: Translate,
+): PriorityItem | null {
+  if (!moduleEnabled(modules, "coach")) return null;
+  const nowMs = now.getTime();
+  const due = plans
+    .filter((p) => isCheckinDue(p, nowMs))
+    .sort((a, b) => {
+      const byDue = checkinDueAt(a) - checkinDueAt(b);
+      if (byDue !== 0) return byDue;
+      // Deterministic tie-break so the same day always surfaces the same card.
+      return a.id < b.id ? -1 : a.id > b.id ? 1 : 0;
+    });
+  const plan = due[0];
+  if (!plan) return null;
+
+  const body = plan.planText
+    ? t("daily.item.coachCheckin.bodyPlan", { plan: plan.planText })
+    : t("daily.item.coachCheckin.body");
+
+  return {
+    kind: "coach_checkin",
+    title: t("daily.item.coachCheckin.title"),
+    body,
+    status: "info",
+    actions: [
+      {
+        labelKey: "daily.action.checkinKeep",
+        intent: `${COACH_CHECKIN_KEEP_INTENT}:${plan.id}`,
+      },
+      {
+        labelKey: "daily.action.checkinAdjust",
+        intent: COACH_CHECKIN_ADJUST_INTENT,
+        href: "/coach",
+      },
+      {
+        labelKey: "daily.action.checkinLetGo",
+        intent: `${COACH_CHECKIN_LETGO_INTENT}:${plan.id}`,
+      },
+    ],
+    moduleKey: "coach",
+  };
+}
+
 /**
  * The push / lock-screen line: prefer the warmer cached briefing lead, fall
  * back to the top signal's headline, then a deterministic score floor, then
@@ -217,21 +358,40 @@ export function buildDailyDigest(
   input: DailyDigestInput,
   t: Translate,
 ): DailyDigest {
+  // §E freshness lifecycle. The day is `final` once ANY of:
+  //   - sleep is disabled (nothing to wait for);
+  //   - the event-driven morning refresh has run for today (authoritative,
+  //     fast — flips the instant the sleep-arrival job stamps the marker);
+  //   - last night's sleep is already visibly in the record (`daysAgo === 0`) —
+  //     the eventual-consistency backstop for when the refresh job never ran
+  //     (no boss worker / keyless self-hoster) but the snapshot has caught up.
+  // Otherwise it stays `provisional`, and `sleepPending` drives the honest
+  // "last night's sleep not yet in" note.
   const sleepEnabled = moduleEnabled(input.modules, "sleep");
-  const sleepPending =
-    sleepEnabled &&
-    (input.sleepLastSeenDaysAgo === null || input.sleepLastSeenDaysAgo >= 1);
-  const phase: DailyDigest["phase"] = sleepPending ? "provisional" : "final";
+  const lastNightSleepIn = input.sleepLastSeenDaysAgo === 0;
+  const isFinal =
+    !sleepEnabled || input.morningRefreshedToday || lastNightSleepIn;
+  const sleepPending = sleepEnabled && !isFinal;
+  const phase: DailyDigest["phase"] = isFinal ? "final" : "provisional";
 
   const topSignal = input.briefing?.signalsOfDay?.[0] ?? null;
   const briefingLead = firstSentence(input.briefing?.paragraph);
 
   // Priority order: an overdue dose is the most time-sensitive daily action, a
-  // broken sync next, a preventive check-up least urgent. Bounded to 3.
+  // broken sync next, then the calm coach check-in, a preventive check-up
+  // least urgent. Bounded to 3 — a check-in the cap crowds out resurfaces on a
+  // following day (within its window), never lost.
   const worthALook: PriorityItem[] = [];
   const dose = buildDoseWindowItem(input.medsToday, input.modules, t);
   if (dose) worthALook.push(dose);
   worthALook.push(...buildSyncIssueItems(input.syncIssues, t));
+  const checkin = buildCoachCheckinItem(
+    input.coachPlans,
+    input.modules,
+    input.now,
+    t,
+  );
+  if (checkin) worthALook.push(checkin);
   const preventive = buildPreventiveCareItem(input.preventiveDue, t);
   if (preventive) worthALook.push(preventive);
 
diff --git a/src/lib/daily/load-digest.ts b/src/lib/daily/load-digest.ts
index f00632900..8747c5908 100644
--- a/src/lib/daily/load-digest.ts
+++ b/src/lib/daily/load-digest.ts
@@ -20,9 +20,12 @@ import { resolveModuleMap } from "@/lib/modules/gate";
 import { readDashboardSnapshotCached } from "@/lib/dashboard/snapshot-read";
 import { getServerTranslator } from "@/lib/i18n/server-translator";
 import { defaultLocale, locales, type Locale } from "@/lib/i18n/config";
+import { decryptFromBytes } from "@/lib/ai/coach/bytes-codec";
+import { userDayKey } from "@/lib/tz/format";
 import {
   buildDailyDigest,
   type DailyDigest,
+  type DailyDigestCoachPlan,
   type DailyDigestPreventiveDue,
   type DailyDigestScore,
   type DailyDigestSyncIssue,
@@ -34,6 +37,45 @@ const SYNC_ISSUE_STATES = ["error_reauth", "parked"] as const;
 /** Defensive cap on how many overdue reminders we read for the rail summary. */
 const PREVENTIVE_DUE_READ_LIMIT = 20;
 
+/** Standing plan states that can carry a check-in (§2.3). */
+const CHECKIN_PLAN_STATES = ["active", "reviewed"] as const;
+
+/** Cap on plans scanned for the (one/day) check-in candidate. */
+const CHECKIN_PLAN_READ_LIMIT = 50;
+
+interface CoachPlanRow {
+  id: string;
+  status: string;
+  reviewDate: Date | null;
+  createdAt: Date;
+  updatedAt: Date;
+  ifCueEncrypted: Uint8Array;
+  thenActionEncrypted: Uint8Array;
+}
+
+/**
+ * Decrypt a plan's if→then prose fault-isolated (an undecryptable row keeps a
+ * null text, never throws) so the check-in card can echo the user's own words.
+ */
+function toCoachPlanCandidate(row: CoachPlanRow): DailyDigestCoachPlan {
+  let planText: string | null = null;
+  try {
+    planText = `${decryptFromBytes(row.ifCueEncrypted)} → ${decryptFromBytes(
+      row.thenActionEncrypted,
+    )}`;
+  } catch {
+    planText = null;
+  }
+  return {
+    id: row.id,
+    status: row.status,
+    reviewDate: row.reviewDate,
+    createdAt: row.createdAt,
+    updatedAt: row.updatedAt,
+    planText,
+  };
+}
+
 function resolveLocale(locale: string | null | undefined): Locale {
   return locales.includes(locale as Locale)
     ? (locale as Locale)
@@ -44,27 +86,54 @@ export async function loadDailyDigest(
   user: User,
   now: Date = new Date(),
 ): Promise<DailyDigest> {
-  const [{ body: snapshot, locale }, modules, syncRows, dueReminders] =
-    await Promise.all([
-      readDashboardSnapshotCached(user),
-      resolveModuleMap(user.id),
-      prisma.integrationStatus.findMany({
-        where: { userId: user.id, state: { in: [...SYNC_ISSUE_STATES] } },
-        select: { integration: true, state: true },
-        orderBy: { integration: "asc" },
-      }),
-      prisma.measurementReminder.findMany({
-        where: {
-          userId: user.id,
-          enabled: true,
-          deletedAt: null,
-          nextDueAt: { not: null, lte: now },
-        },
-        select: { label: true },
-        orderBy: { nextDueAt: "asc" },
-        take: PREVENTIVE_DUE_READ_LIMIT,
-      }),
-    ]);
+  const [
+    { body: snapshot, locale },
+    modules,
+    syncRows,
+    dueReminders,
+    planRows,
+  ] = await Promise.all([
+    readDashboardSnapshotCached(user),
+    resolveModuleMap(user.id),
+    prisma.integrationStatus.findMany({
+      where: { userId: user.id, state: { in: [...SYNC_ISSUE_STATES] } },
+      select: { integration: true, state: true },
+      orderBy: { integration: "asc" },
+    }),
+    prisma.measurementReminder.findMany({
+      where: {
+        userId: user.id,
+        enabled: true,
+        deletedAt: null,
+        nextDueAt: { not: null, lte: now },
+      },
+      select: { label: true },
+      orderBy: { nextDueAt: "asc" },
+      take: PREVENTIVE_DUE_READ_LIMIT,
+    }),
+    // Standing plans for the (one/day) check-in candidate. The plaintext
+    // columns decide due-ness; the encrypted prose is only decrypted below,
+    // and only for a coach-enabled account (disabled-module data never
+    // enters the digest — the builder also drops it, this skips the decrypt).
+    prisma.coachPlan.findMany({
+      where: {
+        userId: user.id,
+        deletedAt: null,
+        status: { in: [...CHECKIN_PLAN_STATES] },
+      },
+      select: {
+        id: true,
+        status: true,
+        reviewDate: true,
+        createdAt: true,
+        updatedAt: true,
+        ifCueEncrypted: true,
+        thenActionEncrypted: true,
+      },
+      orderBy: { updatedAt: "desc" },
+      take: CHECKIN_PLAN_READ_LIMIT,
+    }),
+  ]);
 
   const score: DailyDigestScore | null = snapshot.healthScore
     ? {
@@ -77,6 +146,16 @@ export async function loadDailyDigest(
   const sleepSlot = snapshot.tiles.lastSeenByType["SLEEP_DURATION"];
   const sleepLastSeenDaysAgo = sleepSlot ? sleepSlot.daysAgo : null;
 
+  // S4 freshness (§E) — the day is `final` once the sleep-arrival morning
+  // refresh has stamped `User.morningDigestRefreshedOn` with the user's current
+  // local date (profile tz). Read fresh off the row here, so it flips the
+  // instant the refresh job runs — ahead of the snapshot cache that feeds
+  // `sleepLastSeenDaysAgo`.
+  const todayLocalDate = userDayKey(now, user.timezone);
+  const morningRefreshedToday =
+    user.morningDigestRefreshedOn !== null &&
+    user.morningDigestRefreshedOn === todayLocalDate;
+
   const syncIssues: DailyDigestSyncIssue[] = syncRows.map((row) => ({
     integration: row.integration,
     state: row.state,
@@ -86,6 +165,13 @@ export async function loadDailyDigest(
     label: row.label,
   }));
 
+  // Only decrypt plan prose for a coach-enabled account; the builder gates on
+  // the module too, so a disabled coach never surfaces a check-in either way.
+  const coachEnabled = modules.coach !== false;
+  const coachPlans: DailyDigestCoachPlan[] = coachEnabled
+    ? planRows.map((row) => toCoachPlanCandidate(row as CoachPlanRow))
+    : [];
+
   const { t } = getServerTranslator(resolveLocale(locale));
 
   const digest = buildDailyDigest(
@@ -96,8 +182,10 @@ export async function loadDailyDigest(
       briefing: snapshot.briefing,
       medsToday: snapshot.medsToday,
       sleepLastSeenDaysAgo,
+      morningRefreshedToday,
       syncIssues,
       preventiveDue,
+      coachPlans,
     },
     t,
   );
@@ -109,6 +197,9 @@ export async function loadDailyDigest(
       daily_digest_sleep_pending: digest.sleepPending,
       daily_digest_item_count: digest.worthALook.length,
       daily_digest_has_score: digest.score !== null,
+      daily_digest_has_checkin: digest.worthALook.some(
+        (i) => i.kind === "coach_checkin",
+      ),
     },
   });
 
diff --git a/src/lib/daily/morning-refresh-trigger.ts b/src/lib/daily/morning-refresh-trigger.ts
new file mode 100644
index 000000000..a24483855
--- /dev/null
+++ b/src/lib/daily/morning-refresh-trigger.ts
@@ -0,0 +1,111 @@
+/**
+ * S4 — the sleep-arrival trigger for the morning digest refresh.
+ *
+ * The nightly insight pre-pass (`insight-pregenerate`, 04:30) runs before last
+ * night's sleep has synced, so the morning digest + health score reference the
+ * day WITHOUT the current sleep. This trigger closes that gap the event-driven
+ * way: when a completed sleep segment for LAST NIGHT lands from any of the
+ * three sleep transports (Withings sync-sleep / the WHOOP sync / the
+ * Apple-Health measurement batch), it enqueues a debounced
+ * `morning-digest-refresh` job that re-runs the sleep-dependent generation and
+ * flips the day `provisional → final`.
+ *
+ * There is no single canonical sleep-persist function in the tree — each
+ * transport upserts through its own helper — so the three write seams each call
+ * `maybeEnqueueMorningRefresh` with the measuredAt of every sleep row they just
+ * wrote. The debounce (queue `singletonKey` + the `User.morningDigestRefreshedOn`
+ * marker) collapses the many samples of one night, and across all three
+ * sources, into ONE refresh per user per local morning.
+ *
+ * Timezone correctness is load-bearing: "last night" is judged in the user's
+ * PROFILE timezone, never UTC, so a 30-day backfill re-sync never re-triggers
+ * for historical nights and a sleep that is "last night" locally but a
+ * different UTC date still triggers.
+ */
+import { prisma } from "@/lib/db";
+import { annotate } from "@/lib/logging/context";
+import { resolveModuleMap } from "@/lib/modules/gate";
+import { userDayKey } from "@/lib/tz/format";
+import { resolveUserTimezone } from "@/lib/tz/resolver";
+import { enqueueMorningDigestRefresh } from "@/lib/jobs/morning-digest-refresh-shared";
+
+const MS_PER_DAY = 86_400_000;
+
+/**
+ * True when `measuredAt` belongs to "last night" for an observer in `tz`: its
+ * local calendar date is today or yesterday. An older backfilled segment (local
+ * date ≥ 2 days ago) returns false, so a full WHOOP / Apple / Withings re-sync
+ * that replays a month of nights never re-triggers the morning refresh for a
+ * historical night. A future-dated sample (clock skew) is rejected too.
+ *
+ * Pure + timezone-explicit so the tz-boundary cases are unit-testable without
+ * touching the DB or the queue.
+ */
+export function isLastNightLocal(
+  measuredAt: Date,
+  now: Date,
+  tz: string,
+): boolean {
+  if (measuredAt.getTime() > now.getTime()) return false;
+  const todayKey = userDayKey(now, tz);
+  const yesterdayKey = userDayKey(new Date(now.getTime() - MS_PER_DAY), tz);
+  const segKey = userDayKey(measuredAt, tz);
+  return segKey === todayKey || segKey === yesterdayKey;
+}
+
+/**
+ * Enqueue the debounced morning refresh when at least one of the just-written
+ * sleep segments belongs to last night in the user's profile timezone.
+ *
+ * Best-effort and self-contained: every read is wrapped so a failure can never
+ * fail the sleep sync that called it. Callers still `void … .catch(() => {})`
+ * for defence in depth.
+ *
+ * Gates, in order:
+ *   1. No sleep rows → nothing to do.
+ *   2. `sleep` module off → the digest is always `final` (no sleep to wait
+ *      for), so a refresh would be pointless; no-op.
+ *   3. No segment is "last night" locally → an old backfill; no-op.
+ *   4. `User.morningDigestRefreshedOn` already equals today's local date → the
+ *      refresh already ran this morning; skip the enqueue (the handler
+ *      re-checks the same marker, so this only saves queue churn).
+ */
+export async function maybeEnqueueMorningRefresh(
+  userId: string,
+  sleepMeasuredAts: Date[],
+  now: Date = new Date(),
+): Promise<void> {
+  try {
+    if (sleepMeasuredAts.length === 0) return;
+
+    const modules = await resolveModuleMap(userId);
+    if (modules.sleep === false) return;
+
+    const tz = await resolveUserTimezone(userId);
+    const hasLastNight = sleepMeasuredAts.some((at) =>
+      isLastNightLocal(at, now, tz),
+    );
+    if (!hasLastNight) return;
+
+    const localDate = userDayKey(now, tz);
+
+    const row = await prisma.user.findUnique({
+      where: { id: userId },
+      select: { morningDigestRefreshedOn: true },
+    });
+    if (row?.morningDigestRefreshedOn === localDate) return;
+
+    await enqueueMorningDigestRefresh({ userId, localDate });
+    annotate({
+      action: { name: "daily.morning_refresh.triggered" },
+      meta: {
+        local_date: localDate,
+        sleep_samples: sleepMeasuredAts.length,
+      },
+    });
+  } catch {
+    // Never let a freshness trigger fail an ingest. The next sleep landing and
+    // the nightly cron are the catch-net; the digest stays honestly
+    // provisional until one of them refreshes it.
+  }
+}
diff --git a/src/lib/jobs/__tests__/daily-briefing.test.ts b/src/lib/jobs/__tests__/daily-briefing.test.ts
new file mode 100644
index 000000000..8ae057493
--- /dev/null
+++ b/src/lib/jobs/__tests__/daily-briefing.test.ts
@@ -0,0 +1,117 @@
+/**
+ * S5 — daily-briefing fallback cron: tz slot-gating + result accounting, plus
+ * the dead-queue wiring guard (imported / in allQueues / scheduled / worked).
+ */
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+
+import { describe, it, expect, vi } from "vitest";
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import {
+  runDailyBriefingTick,
+  DAILY_BRIEFING_QUEUE,
+  DAILY_BRIEFING_CRON,
+} from "@/lib/jobs/daily-briefing";
+import type { maybeDispatchDailyBriefing } from "@/lib/daily/daily-briefing-push";
+
+// 06:00Z → 08:00 Berlin (the fallback hour) but 02:00 in New York (not the
+// slot), so a mixed-tz cohort exercises the per-user local-hour gate.
+const NOW = new Date("2026-07-16T06:00:00Z");
+
+function makePrisma(
+  cohort: Array<{ userId: string; timezone: string }>,
+): PrismaClient {
+  return {
+    notificationPreference: {
+      findMany: vi.fn(async () =>
+        cohort.map((c) => ({
+          channel: { userId: c.userId, user: { timezone: c.timezone } },
+        })),
+      ),
+    },
+  } as unknown as PrismaClient;
+}
+
+describe("runDailyBriefingTick — slot gating", () => {
+  it("only calls the dispatch seam for users at their local fallback hour", async () => {
+    const prisma = makePrisma([
+      { userId: "berlin", timezone: "Europe/Berlin" }, // 08:00 → in slot
+      { userId: "ny", timezone: "America/New_York" }, // 02:00 → not slot
+    ]);
+    const maybeDispatch = vi.fn<typeof maybeDispatchDailyBriefing>(
+      async () => "sent",
+    );
+
+    const summary = await runDailyBriefingTick(prisma, NOW, { maybeDispatch });
+
+    expect(summary.candidatesScanned).toBe(2);
+    expect(summary.inSlot).toBe(1);
+    expect(summary.sent).toBe(1);
+    expect(maybeDispatch).toHaveBeenCalledTimes(1);
+    expect(maybeDispatch.mock.calls[0][1]).toBe("berlin");
+  });
+
+  it("routes each dispatch result into its summary bucket", async () => {
+    const prisma = makePrisma([
+      { userId: "berlin", timezone: "Europe/Berlin" },
+    ]);
+    const maybeDispatch = vi.fn<typeof maybeDispatchDailyBriefing>(
+      async () => "suppressed-frequency",
+    );
+
+    const summary = await runDailyBriefingTick(prisma, NOW, { maybeDispatch });
+    expect(summary.suppressedFrequency).toBe(1);
+    expect(summary.sent).toBe(0);
+  });
+
+  it("an empty opted-in cohort is a clean no-op", async () => {
+    const prisma = makePrisma([]);
+    const maybeDispatch = vi.fn<typeof maybeDispatchDailyBriefing>(
+      async () => "sent",
+    );
+    const summary = await runDailyBriefingTick(prisma, NOW, { maybeDispatch });
+    expect(summary.candidatesScanned).toBe(0);
+    expect(maybeDispatch).not.toHaveBeenCalled();
+  });
+});
+
+describe("reminder-worker — daily-briefing wiring", () => {
+  const registrar = readFileSync(
+    join(__dirname, "..", "reminder", "register-status.ts"),
+    "utf8",
+  );
+
+  it("imports the queue symbols from the daily-briefing module", () => {
+    expect(registrar).toMatch(/from\s*["']@\/lib\/jobs\/daily-briefing["']/);
+    expect(registrar).toMatch(/\bDAILY_BRIEFING_QUEUE\b/);
+    expect(registrar).toMatch(/\bDAILY_BRIEFING_CRON\b/);
+    expect(registrar).toMatch(/\brunDailyBriefingTick\b/);
+  });
+
+  it("registers the queue in allQueues and schedules the cron", () => {
+    const allQueues = registrar.match(/const allQueues\s*=\s*\[([\s\S]*?)\];/);
+    expect(allQueues).not.toBeNull();
+    expect(allQueues![1]).toMatch(/\bDAILY_BRIEFING_QUEUE\b/);
+    expect(registrar).toMatch(
+      /\[DAILY_BRIEFING_QUEUE,\s*DAILY_BRIEFING_CRON\]/,
+    );
+  });
+
+  it("wires a boss.work handler that runs the tick", () => {
+    expect(registrar).toMatch(
+      /boss\.work[\s\S]{0,200}DAILY_BRIEFING_QUEUE[\s\S]{0,400}runDailyBriefingTick/,
+    );
+  });
+
+  it("fires the finalisation-hook push after a finalised morning refresh", () => {
+    expect(registrar).toMatch(
+      /result\.status\s*===\s*["']finalised["'][\s\S]{0,300}maybeDispatchDailyBriefing/,
+    );
+  });
+
+  it("uses an every-15-min cron for the fallback slot", () => {
+    expect(DAILY_BRIEFING_QUEUE).toBe("daily-briefing");
+    expect(DAILY_BRIEFING_CRON).toBe("*/15 * * * *");
+  });
+});
diff --git a/src/lib/jobs/__tests__/morning-digest-refresh.test.ts b/src/lib/jobs/__tests__/morning-digest-refresh.test.ts
new file mode 100644
index 000000000..050b97d6c
--- /dev/null
+++ b/src/lib/jobs/__tests__/morning-digest-refresh.test.ts
@@ -0,0 +1,154 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+import { runMorningDigestRefresh } from "../morning-digest-refresh";
+import type { GenerateOutcome } from "@/lib/insights/comprehensive-generate";
+
+const LOCAL_DATE = "2026-07-16";
+
+function makePrisma(
+  user: {
+    locale: string | null;
+    morningDigestRefreshedOn: string | null;
+  } | null,
+) {
+  const updateMock = vi.fn(async () => ({}));
+  const prisma = {
+    user: {
+      findUnique: vi.fn(async () => user),
+      update: updateMock,
+    },
+  };
+  return { prisma, updateMock };
+}
+
+describe("runMorningDigestRefresh", () => {
+  const retryMock = vi.fn(async () => {});
+
+  beforeEach(() => {
+    retryMock.mockReset();
+  });
+
+  it("regenerates and stamps the marker → finalises the day", async () => {
+    const { prisma, updateMock } = makePrisma({
+      locale: "en",
+      morningDigestRefreshedOn: null,
+    });
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "generated",
+      providerType: "mock",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "u1", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(generate).toHaveBeenCalledWith("u1", { locale: "en", force: true });
+    expect(updateMock).toHaveBeenCalledWith({
+      where: { id: "u1" },
+      data: { morningDigestRefreshedOn: LOCAL_DATE },
+    });
+    expect(result.status).toBe("finalised");
+    expect(retryMock).not.toHaveBeenCalled();
+  });
+
+  it("finalises on an `unchanged` regen (content-hash no-op is still fresh)", async () => {
+    const { prisma, updateMock } = makePrisma({
+      locale: "de",
+      morningDigestRefreshedOn: null,
+    });
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "unchanged",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "u1", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(generate).toHaveBeenCalledWith("u1", { locale: "de", force: true });
+    expect(updateMock).toHaveBeenCalled();
+    expect(result).toEqual({ status: "finalised", comprehensive: "unchanged" });
+  });
+
+  it("finalises a keyless user (`skipped` no-provider) — nothing to wait for", async () => {
+    const { prisma, updateMock } = makePrisma({
+      locale: "en",
+      morningDigestRefreshedOn: null,
+    });
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "skipped",
+      reason: "no-provider",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "u1", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(updateMock).toHaveBeenCalled();
+    expect(result.status).toBe("finalised");
+  });
+
+  it("is idempotent: a second run for the same morning no-ops via the marker", async () => {
+    const { prisma, updateMock } = makePrisma({
+      locale: "en",
+      morningDigestRefreshedOn: LOCAL_DATE,
+    });
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "generated",
+      providerType: "mock",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "u1", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(generate).not.toHaveBeenCalled();
+    expect(updateMock).not.toHaveBeenCalled();
+    expect(result.status).toBe("already-final");
+  });
+
+  it("leaves the day provisional on a hard generation failure and hands off to the retry machinery", async () => {
+    const { prisma, updateMock } = makePrisma({
+      locale: "en",
+      morningDigestRefreshedOn: null,
+    });
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "failed",
+      reason: "provider-timeout",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "u1", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(updateMock).not.toHaveBeenCalled();
+    expect(retryMock).toHaveBeenCalledWith({ userId: "u1", locale: "en" });
+    expect(result.status).toBe("failed");
+  });
+
+  it("reports missing-user when the row is gone", async () => {
+    const { prisma, updateMock } = makePrisma(null);
+    const generate = vi.fn(async (): Promise<GenerateOutcome> => ({
+      status: "unchanged",
+    }));
+
+    const result = await runMorningDigestRefresh(
+      prisma as never,
+      { userId: "ghost", localDate: LOCAL_DATE },
+      { generate, enqueueRetry: retryMock },
+    );
+
+    expect(generate).not.toHaveBeenCalled();
+    expect(updateMock).not.toHaveBeenCalled();
+    expect(result.status).toBe("missing-user");
+  });
+});
diff --git a/src/lib/jobs/daily-briefing.ts b/src/lib/jobs/daily-briefing.ts
new file mode 100644
index 000000000..d91d0097a
--- /dev/null
+++ b/src/lib/jobs/daily-briefing.ts
@@ -0,0 +1,149 @@
+/**
+ * S5 — the daily-briefing fallback cron.
+ *
+ * The PRIMARY trigger for the morning push is event-driven: the S4
+ * morning-refresh worker dispatches it the instant last night's sleep lands and
+ * the digest finalises (see `register-status.ts`). This cron is the FALLBACK
+ * slot for the honest-degradation case — a user whose sleep never synced, so no
+ * finalisation ever fired. It ticks every 15 minutes (the mood- /
+ * measurement-reminder cadence) and, for each OPTED-IN user whose local wall
+ * clock is at the fixed fallback hour, funnels through the same
+ * `maybeDispatchDailyBriefing` decision seam. The `push_attempts` frequency cap
+ * means a user who already got the finalisation push earlier this morning is
+ * suppressed here — one push per user per local day, no matter which trigger
+ * won the race.
+ *
+ * The opted-in cohort is small (DAILY_BRIEFING defaults OFF), and the per-user
+ * work is gated on the exact local fallback hour, so the tick is cheap: it only
+ * loads a digest for the handful of users at their fallback minute-window this
+ * tick.
+ */
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import { getEvent } from "@/lib/logging/context";
+import { wallClockInTz } from "@/lib/tz/wall-clock";
+import { dispatchNotification } from "@/lib/notifications/dispatcher";
+import {
+  DAILY_BRIEFING_FALLBACK_HOUR,
+  maybeDispatchDailyBriefing,
+  type DailyBriefingDispatchDeps,
+} from "@/lib/daily/daily-briefing-push";
+
+export const DAILY_BRIEFING_QUEUE = "daily-briefing";
+/** Every 15 minutes; the per-user local-hour gate selects the fallback slot. */
+export const DAILY_BRIEFING_CRON = "*/15 * * * *";
+
+export interface DailyBriefingTickSummary {
+  candidatesScanned: number;
+  inSlot: number;
+  sent: number;
+  suppressedFrequency: number;
+  noDigest: number;
+  optedOut: number;
+  moduleOff: number;
+  noChannel: number;
+  outsideWindow: number;
+  failed: number;
+}
+
+/**
+ * Run one fallback-cron tick. Injectable `dispatch` / `maybeDispatch` so the
+ * unit tests pin the slot-gating + result accounting without a running boss,
+ * provider, or DB.
+ */
+export async function runDailyBriefingTick(
+  prisma: PrismaClient,
+  now: Date,
+  options: {
+    dispatch?: typeof dispatchNotification;
+    /** Injectable decision seam (defaults to the real one). */
+    maybeDispatch?: typeof maybeDispatchDailyBriefing;
+    dispatchDeps?: DailyBriefingDispatchDeps;
+  } = {},
+): Promise<DailyBriefingTickSummary> {
+  const maybeDispatch = options.maybeDispatch ?? maybeDispatchDailyBriefing;
+  const dispatchDeps: DailyBriefingDispatchDeps = {
+    ...(options.dispatchDeps ?? {}),
+    ...(options.dispatch ? { dispatch: options.dispatch } : {}),
+  };
+
+  const summary: DailyBriefingTickSummary = {
+    candidatesScanned: 0,
+    inSlot: 0,
+    sent: 0,
+    suppressedFrequency: 0,
+    noDigest: 0,
+    optedOut: 0,
+    moduleOff: 0,
+    noChannel: 0,
+    outsideWindow: 0,
+    failed: 0,
+  };
+
+  // The opted-in cohort: users with at least one enabled DAILY_BRIEFING
+  // preference row. Deduped by userId (a user may have opted several channels
+  // in) and carrying the timezone so the slot gate needs no extra read.
+  const prefs = await prisma.notificationPreference.findMany({
+    where: { eventType: "DAILY_BRIEFING", enabled: true },
+    select: {
+      channel: {
+        select: { userId: true, user: { select: { timezone: true } } },
+      },
+    },
+  });
+
+  const cohort = new Map<string, string>();
+  for (const pref of prefs) {
+    const userId = pref.channel?.userId;
+    if (!userId) continue;
+    cohort.set(userId, pref.channel.user?.timezone || "Europe/Berlin");
+  }
+
+  for (const [userId, tz] of cohort) {
+    summary.candidatesScanned += 1;
+    try {
+      // Fire only at the fixed fallback hour; the earlier part of the morning
+      // window belongs to the event-driven finalisation push.
+      if (wallClockInTz(now, tz).hour !== DAILY_BRIEFING_FALLBACK_HOUR) {
+        continue;
+      }
+      summary.inSlot += 1;
+
+      const result = await maybeDispatch(prisma, userId, now, dispatchDeps);
+      switch (result) {
+        case "sent":
+          summary.sent += 1;
+          break;
+        case "suppressed-frequency":
+          summary.suppressedFrequency += 1;
+          break;
+        case "no-digest":
+          summary.noDigest += 1;
+          break;
+        case "opted-out":
+          summary.optedOut += 1;
+          break;
+        case "module-off":
+          summary.moduleOff += 1;
+          break;
+        case "no-channel":
+          summary.noChannel += 1;
+          break;
+        case "outside-window":
+          summary.outsideWindow += 1;
+          break;
+        default:
+          summary.failed += 1;
+      }
+    } catch (err) {
+      summary.failed += 1;
+      getEvent()?.addWarning(
+        `daily-briefing tick failed for ${userId}: ${
+          err instanceof Error ? err.message : String(err)
+        }`,
+      );
+    }
+  }
+
+  return summary;
+}
diff --git a/src/lib/jobs/morning-digest-refresh-shared.ts b/src/lib/jobs/morning-digest-refresh-shared.ts
new file mode 100644
index 000000000..a7486efd2
--- /dev/null
+++ b/src/lib/jobs/morning-digest-refresh-shared.ts
@@ -0,0 +1,75 @@
+/**
+ * S4 — generator-free contract for the `morning-digest-refresh` queue.
+ *
+ * The sleep-arrival trigger (`@/lib/daily/morning-refresh-trigger`) — reached
+ * from the Withings, WHOOP, and Apple-Health sleep-write seams — enqueues a
+ * debounced morning refresh here WITHOUT importing the comprehensive generator
+ * (which would drag the whole insight tree into every sleep-sync bundle and
+ * risk an import cycle through the transports). The worker-only pipeline
+ * (`runMorningDigestRefresh`) lives in `morning-digest-refresh.ts`, which
+ * re-exports the queue name from here so there is a single source of truth.
+ *
+ * Mirrors the `insight-pregenerate-shared.ts` split exactly: queue name +
+ * payload type + enqueue helper in the generator-free module, the concrete
+ * dispatch in the worker module.
+ */
+import { getGlobalBoss } from "@/lib/jobs/boss-instance";
+import { annotate } from "@/lib/logging/context";
+
+export const MORNING_DIGEST_REFRESH_QUEUE = "morning-digest-refresh";
+
+export interface MorningDigestRefreshPayload {
+  userId: string;
+  /**
+   * The user-local YYYY-MM-DD (their profile timezone) this refresh finalises.
+   * Doubles as the debounce key and the value the handler stamps onto
+   * `User.morningDigestRefreshedOn` so the digest reads `final` for the day.
+   */
+  localDate: string;
+}
+
+/**
+ * Fire-and-forget enqueue for the sleep-arrival trigger. The `singletonKey`
+ * carries the user AND the local date, so the many sleep samples of one night
+ * collapse into ONE queued job: while a refresh for this morning is
+ * created/active no duplicate can be inserted. Once it completes, the durable
+ * `User.morningDigestRefreshedOn` marker (re-checked in the handler AND
+ * pre-checked in the trigger) stops any later sample from re-running it — the
+ * pair is at-most-once per user per local morning.
+ *
+ * No `singletonSeconds`: a time-slot throttle would let a second morning's
+ * refresh be swallowed if it fell inside the window; the local-date-scoped key
+ * is already unique per morning, so the plain active-job constraint is exactly
+ * the debounce we want. No-ops cleanly when no global boss instance is
+ * available (a web process without an embedded worker) — the next sleep
+ * landing, and the nightly cron, remain the catch-net.
+ */
+export async function enqueueMorningDigestRefresh(
+  payload: MorningDigestRefreshPayload,
+): Promise<void> {
+  const boss = getGlobalBoss();
+  if (!boss) {
+    annotate({
+      action: { name: "daily.morning_refresh.no_boss" },
+      meta: { local_date: payload.localDate },
+    });
+    return;
+  }
+  try {
+    await boss.send(MORNING_DIGEST_REFRESH_QUEUE, payload, {
+      singletonKey: `morning-refresh:${payload.userId}:${payload.localDate}`,
+      // A transient provider / pool failure retries with backoff rather than
+      // leaving the day provisional until the next sleep sample lands.
+      retryLimit: 2,
+      retryDelay: 60,
+      retryBackoff: true,
+    });
+    annotate({
+      action: { name: "daily.morning_refresh.enqueued" },
+      meta: { local_date: payload.localDate },
+    });
+  } catch {
+    // Best-effort: a failed enqueue leaves the next sleep landing + the nightly
+    // cron as the catch-net; the digest stays honestly provisional meanwhile.
+  }
+}
diff --git a/src/lib/jobs/morning-digest-refresh.ts b/src/lib/jobs/morning-digest-refresh.ts
new file mode 100644
index 000000000..acaa6151d
--- /dev/null
+++ b/src/lib/jobs/morning-digest-refresh.ts
@@ -0,0 +1,128 @@
+/**
+ * S4 — the `morning-digest-refresh` worker.
+ *
+ * Runs ONE extra insight generation per user per local morning, event-driven
+ * off the arrival of last night's sleep (never warm-on-mount, never per page
+ * visit). It re-runs the SAME comprehensive pipeline the nightly
+ * `insight-pregenerate` cron uses — forced so the 24 h cache short-circuit is
+ * bypassed — then stamps `User.morningDigestRefreshedOn` so the daily digest
+ * flips the day `provisional → final`.
+ *
+ * Cheap by construction: the generator's own content-hash gate turns a
+ * no-change regeneration into an `unchanged` timestamp refresh with no provider
+ * call, so a morning whose sleep did not actually move the feature snapshot
+ * costs a hash compare, not an LLM round-trip. A real change — last night's
+ * sleep now folded into the features — regenerates the briefing paragraph AND
+ * warms the score's read path.
+ *
+ * Honest degradation (§E): on a hard generation failure the marker is NOT
+ * stamped, so the day stays `provisional` and the digest keeps showing the
+ * sleep-pending note. The generator already recorded the omit-reason via
+ * `recordBriefingFailure` on its failure paths, and we re-enqueue the SAME
+ * 45-minute bounded retry the nightly cron uses (`enqueuePregenerateFailureRetry`)
+ * — no parallel freshness machinery is invented here.
+ *
+ * Idempotency: a second run for the same local morning no-ops on the marker
+ * re-check. The enqueue-side `singletonKey` collapses the concurrent burst; the
+ * marker is the durable "already done" guard the singleton cannot provide once
+ * the first job has completed.
+ */
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import { annotate } from "@/lib/logging/context";
+import {
+  generateComprehensiveInsight,
+  type GenerateOutcome,
+} from "@/lib/insights/comprehensive-generate";
+import { enqueuePregenerateFailureRetry } from "@/lib/jobs/insight-pregenerate-shared";
+import { normalizeLocale } from "@/lib/insights/status-shared";
+import {
+  MORNING_DIGEST_REFRESH_QUEUE,
+  type MorningDigestRefreshPayload,
+} from "@/lib/jobs/morning-digest-refresh-shared";
+
+export { MORNING_DIGEST_REFRESH_QUEUE };
+export type { MorningDigestRefreshPayload };
+
+export interface MorningDigestRefreshResult {
+  status: "finalised" | "already-final" | "missing-user" | "failed";
+  /** The comprehensive generator's own outcome, when it ran. */
+  comprehensive?: GenerateOutcome["status"];
+}
+
+type GenerateFn = (
+  userId: string,
+  options: { locale: "de" | "en"; force?: boolean },
+) => Promise<GenerateOutcome>;
+
+/**
+ * Execute the morning refresh for one user. Pure of queue concerns — the boss
+ * handler in `register-status.ts` wraps this in the background-event envelope.
+ *
+ * `deps` is injected by the tests: a fake generator + failure-retry so the
+ * marker lifecycle and idempotency can be asserted without a provider or a
+ * running boss.
+ */
+export async function runMorningDigestRefresh(
+  prisma: PrismaClient,
+  payload: MorningDigestRefreshPayload,
+  deps: {
+    generate?: GenerateFn;
+    enqueueRetry?: (args: {
+      userId: string;
+      locale: "de" | "en";
+    }) => Promise<void>;
+  } = {},
+): Promise<MorningDigestRefreshResult> {
+  const generate: GenerateFn = deps.generate ?? generateComprehensiveInsight;
+  const enqueueRetry = deps.enqueueRetry ?? enqueuePregenerateFailureRetry;
+  const { userId, localDate } = payload;
+
+  const user = await prisma.user.findUnique({
+    where: { id: userId },
+    select: { locale: true, morningDigestRefreshedOn: true },
+  });
+  if (!user) {
+    annotate({
+      action: { name: "daily.morning_refresh.missing_user" },
+      meta: { local_date: localDate },
+    });
+    return { status: "missing-user" };
+  }
+
+  // Idempotency: a re-fire for the same local morning is a no-op.
+  if (user.morningDigestRefreshedOn === localDate) {
+    annotate({
+      action: { name: "daily.morning_refresh.already_final" },
+      meta: { local_date: localDate },
+    });
+    return { status: "already-final" };
+  }
+
+  const locale = normalizeLocale(user.locale);
+  const outcome = await generate(userId, { locale, force: true });
+
+  // A hard provider failure leaves the day provisional and hands recovery to
+  // the existing 45-minute briefing-retry machinery. Every other outcome —
+  // including `skipped` (no provider / no consent: there is no LLM briefing to
+  // wait for, so the deterministic score + digest are as final as they get
+  // once last night's sleep is in the record) — finalises the day.
+  if (outcome.status === "failed") {
+    annotate({
+      action: { name: "daily.morning_refresh.deferred" },
+      meta: { local_date: localDate, cause: `generator:${outcome.reason}` },
+    });
+    await enqueueRetry({ userId, locale });
+    return { status: "failed", comprehensive: outcome.status };
+  }
+
+  await prisma.user.update({
+    where: { id: userId },
+    data: { morningDigestRefreshedOn: localDate },
+  });
+  annotate({
+    action: { name: "daily.morning_refresh.finalised" },
+    meta: { local_date: localDate, comprehensive: outcome.status },
+  });
+  return { status: "finalised", comprehensive: outcome.status };
+}
diff --git a/src/lib/jobs/reminder/register-status.ts b/src/lib/jobs/reminder/register-status.ts
index bba28d96a..315ed0eaf 100644
--- a/src/lib/jobs/reminder/register-status.ts
+++ b/src/lib/jobs/reminder/register-status.ts
@@ -24,6 +24,17 @@ import {
   INSIGHT_PREGENERATE_CRON,
   type InsightPregeneratePayload,
 } from "@/lib/jobs/insight-pregenerate";
+import {
+  MORNING_DIGEST_REFRESH_QUEUE,
+  runMorningDigestRefresh,
+  type MorningDigestRefreshPayload,
+} from "@/lib/jobs/morning-digest-refresh";
+import {
+  DAILY_BRIEFING_QUEUE,
+  DAILY_BRIEFING_CRON,
+  runDailyBriefingTick,
+} from "@/lib/jobs/daily-briefing";
+import { maybeDispatchDailyBriefing } from "@/lib/daily/daily-briefing-push";
 import {
   RECOVERY_SCORE_QUEUE,
   RECOVERY_SCORE_CRON,
@@ -154,6 +165,11 @@ const allQueues = [
   // provisions the queue and the enqueue silently drops. No cron schedule —
   // a send-only queue driven by navigation.
   INSIGHT_STATUS_GENERATE_QUEUE,
+  // S4 — event-driven morning digest refresh, enqueued by the sleep-arrival
+  // trigger when last night's completed sleep lands. No cron schedule — a
+  // send-only queue driven by sleep ingest; without this entry pg-boss never
+  // provisions the queue and every enqueue silently drops.
+  MORNING_DIGEST_REFRESH_QUEUE,
   // v1.10.0 — computed scores (WX-C / WX-E). Nightly Recovery / Stress /
   // Strain compute + store. The queue MUST be registered here or pg-boss
   // never provisions it and the nightly schedule silently never fires.
@@ -178,6 +194,11 @@ const allQueues = [
   // v1.16.11 — daily medication low-stock pass. Without this entry the 09:00
   // schedule silently no-ops and no low-stock alert ever fires.
   MEDICATION_LOW_STOCK_QUEUE,
+  // S5 — daily-briefing fallback cron. The primary morning push rides the
+  // sleep-arrival finalisation hook below; this queue is the fixed local-morning
+  // slot for the no-sleep-arrived case. Without this entry the every-15-min
+  // schedule silently no-ops and the fallback push never fires.
+  DAILY_BRIEFING_QUEUE,
 ];
 
 const schedules: ScheduleEntry[] = [
@@ -233,6 +254,11 @@ const schedules: ScheduleEntry[] = [
   // can act on it. Once daily; the per-medication stamp keeps it at
   // one push per threshold crossing.
   [MEDICATION_LOW_STOCK_QUEUE, MEDICATION_LOW_STOCK_CRON],
+  // S5 — daily-briefing fallback slot. Ticks every 15 min; the per-user
+  // local-hour gate inside the tick selects each user's fixed morning slot, so
+  // one UTC cron serves every timezone. The `push_attempts` cap suppresses it
+  // when the sleep-arrival finalisation push already fired this morning.
+  [DAILY_BRIEFING_QUEUE, DAILY_BRIEFING_CRON],
 ];
 
 /**
@@ -295,6 +321,52 @@ export async function registerStatusQueues(
     { localConcurrency: 2 },
     handleInsightPregenerateJob,
   );
+  // S4 — event-driven morning digest refresh. One forced comprehensive
+  // regeneration per user per local morning, enqueued by the sleep-arrival
+  // trigger. Single-flight: the enqueue-side singletonKey already collapses a
+  // night's samples into one job, and the handler's marker re-check makes a
+  // rare double-fire a no-op, so one slot is enough and bounds the provider
+  // concurrency the same way the nightly path does.
+  await boss.work<MorningDigestRefreshPayload>(
+    MORNING_DIGEST_REFRESH_QUEUE,
+    { localConcurrency: 1 },
+    async (jobs) => {
+      await withBackgroundEvent("job.morning_digest_refresh", async (evt) => {
+        for (const job of jobs) {
+          try {
+            const result = await runMorningDigestRefresh(
+              getWorkerPrisma(),
+              job.data,
+            );
+            evt.addMeta(
+              "morning_refresh",
+              `${result.status}:${result.comprehensive ?? "none"}`,
+            );
+            // S5 — the day just finalised (last night's sleep folded in), so
+            // this is the natural, event-driven moment to fire the calm morning
+            // push carrying the FINAL digest. Fully fault-isolated inside the
+            // seam; the opt-in / morning-window / once-per-day gates all live
+            // there, so a user who never opted in or is outside the window is a
+            // clean no-op. The fallback cron covers the no-sleep-arrived case.
+            if (result.status === "finalised") {
+              const pushResult = await maybeDispatchDailyBriefing(
+                getWorkerPrisma(),
+                job.data.userId,
+                new Date(),
+              );
+              evt.addMeta("daily_briefing_push", pushResult);
+            }
+          } catch (err) {
+            recordError();
+            workerLog("error", "[morning-digest-refresh] pass failed", err);
+            // Rethrow so the queue's retry policy re-runs the refresh; the
+            // marker re-check keeps a retry idempotent.
+            throw err;
+          }
+        }
+      });
+    },
+  );
   // v1.8.3 — on-demand per-metric status generation enqueued by the
   // read-only status route on a cold card. Low concurrency so a first
   // visit that cold-misses several cards can't saturate the Prisma pool
@@ -387,6 +459,40 @@ export async function registerStatusQueues(
       });
     },
   );
+  // S5 — daily-briefing fallback slot. Single-flight; the `push_attempts`
+  // frequency cap makes an overlapping tick a no-op (a second same-day attempt
+  // is suppressed), and the tick only loads a digest for opted-in users at
+  // their exact local fallback hour. No provider call — it reads the cached
+  // digest and dispatches the deterministic line + cached lead.
+  await boss.work(DAILY_BRIEFING_QUEUE, { localConcurrency: 1 }, async () => {
+    await withBackgroundEvent("job.daily_briefing", async (evt) => {
+      try {
+        const summary = await runDailyBriefingTick(
+          getWorkerPrisma(),
+          new Date(),
+        );
+        evt.setBackground({
+          task_name: "job.daily_briefing",
+          result: {
+            candidates_scanned: summary.candidatesScanned,
+            in_slot: summary.inSlot,
+            sent: summary.sent,
+            suppressed_frequency: summary.suppressedFrequency,
+            no_digest: summary.noDigest,
+            opted_out: summary.optedOut,
+            module_off: summary.moduleOff,
+            no_channel: summary.noChannel,
+            outside_window: summary.outsideWindow,
+            failed: summary.failed,
+          },
+        });
+      } catch (err) {
+        evt.setError(err);
+        recordError();
+        throw err;
+      }
+    });
+  });
   // v1.10.0 — computed scores (WX-E). Nightly Stress-score (HRV-derived
   // proxy) compute + store. Single-flight so two ticks never double-walk
   // the cohort. The runner iterates every eligible user and upserts one
diff --git a/src/lib/notifications/types.ts b/src/lib/notifications/types.ts
index 860e78af6..102871b2e 100644
--- a/src/lib/notifications/types.ts
+++ b/src/lib/notifications/types.ts
@@ -101,6 +101,17 @@ export const EVENT_TYPES = [
   // would defeat the feature. An explicit per-channel `NotificationPreference`
   // row still wins for a user who opts out.
   "SECURITY_ALERT",
+  // S5 — the once-daily calm morning briefing. Default OFF (see
+  // EVENT_DEFAULT_ENABLED, the PERSONAL_RECORD precedent): the user opts in
+  // per-channel from the /notifications matrix, so the channel choice is
+  // explicit at opt-in. It reads the CACHED daily digest — never a fresh AI
+  // call — and carries a minimal, non-clinical line (cached briefing lead with
+  // a deterministic floor). It is a nudge, NEVER the anomaly channel: it is
+  // dispatched non-urgent, fired at most once per user per local day (the
+  // `push_attempts` ledger is the frequency anchor), and only inside a local
+  // morning window, so a concerning reading always stays on
+  // `MEASUREMENT_ANOMALY` and this never bypasses Focus.
+  "DAILY_BRIEFING",
 ] as const;
 export type EventType = (typeof EVENT_TYPES)[number];
 
@@ -162,6 +173,12 @@ export const EVENT_DEFAULT_ENABLED: Record<EventType, boolean> = {
   // needs surfaced. An explicit per-channel `NotificationPreference` row
   // (enabled=false) still suppresses it for a user who opts out.
   SECURITY_ALERT: true,
+  // S5 — OFF by default (the PERSONAL_RECORD precedent). The calm daily
+  // briefing stays silent until the user explicitly opts in per-channel at
+  // /notifications; the dispatcher's default-policy gate suppresses every
+  // channel that has no explicit enabled row, so a fresh account never
+  // receives a morning push it did not ask for.
+  DAILY_BRIEFING: false,
 };
 
 export const CHANNEL_TYPE_LABELS: Record<ChannelType, string> = {
diff --git a/src/lib/whoop/sync-sleep.ts b/src/lib/whoop/sync-sleep.ts
index 84828749b..0202b68b7 100644
--- a/src/lib/whoop/sync-sleep.ts
+++ b/src/lib/whoop/sync-sleep.ts
@@ -25,6 +25,7 @@ import {
   sweepStaleSleepSegments,
   type SleepSegmentSweep,
 } from "@/lib/sleep/sweep-stale-segments";
+import { maybeEnqueueMorningRefresh } from "@/lib/daily/morning-refresh-trigger";
 
 import { fetchSleeps, fetchSleepById, mapSleep } from "./client";
 import {
@@ -95,6 +96,15 @@ export async function syncUserSleep(
 
   const imported = await upsertWhoopMeasurements(userId, readings);
   await markResourceSynced(userId, "sleep");
+
+  // S4 — trigger the debounced morning refresh on a last-night segment landing.
+  void maybeEnqueueMorningRefresh(
+    userId,
+    readings
+      .filter((r) => r.type === "SLEEP_DURATION")
+      .map((r) => r.measuredAt),
+  ).catch(() => {});
+
   return imported;
 }
 
@@ -142,5 +152,16 @@ export async function syncWhoopSleepById(
     { prefix: `${record.id}:`, keepIds },
   ]);
 
-  return upsertWhoopMeasurements(userId, readings);
+  const imported = await upsertWhoopMeasurements(userId, readings);
+
+  // S4 — a webhook-driven single-record refresh is the freshest possible
+  // last-night signal; kick the debounced morning refresh on its segments.
+  void maybeEnqueueMorningRefresh(
+    userId,
+    readings
+      .filter((r) => r.type === "SLEEP_DURATION")
+      .map((r) => r.measuredAt),
+  ).catch(() => {});
+
+  return imported;
 }
diff --git a/src/lib/withings/sync-sleep.ts b/src/lib/withings/sync-sleep.ts
index 791e89726..37565c3fd 100644
--- a/src/lib/withings/sync-sleep.ts
+++ b/src/lib/withings/sync-sleep.ts
@@ -48,6 +48,7 @@ import {
   recomputeBucketsForMeasurement,
 } from "@/lib/rollups/measurement-rollups";
 import { invalidateStatusInsightsForTypes } from "@/lib/insights/comprehensive-generate";
+import { maybeEnqueueMorningRefresh } from "@/lib/daily/morning-refresh-trigger";
 
 import {
   sweepStaleSleepSegments,
@@ -636,6 +637,15 @@ export async function syncUserSleep(
     );
   }
 
+  // S4 — if a stage segment for last night just landed, kick the debounced
+  // morning refresh so the digest/score finalise with the current sleep. The
+  // trigger judges "last night" in the user's profile tz and no-ops on a
+  // backfill; fire-and-forget so a freshness enqueue never fails the sync.
+  void maybeEnqueueMorningRefresh(
+    userId,
+    touched.filter((tt) => tt.type === SLEEP_TYPE).map((tt) => tt.measuredAt),
+  ).catch(() => {});
+
   await recordSyncSuccess(userId, "withings");
   return imported;
 }