diff --git a/src/components/insights/sleep/__tests__/chronotype-section.test.tsx b/src/components/insights/sleep/__tests__/chronotype-section.test.tsx
index 7d09a89d0..8d26be570 100644
--- a/src/components/insights/sleep/__tests__/chronotype-section.test.tsx
+++ b/src/components/insights/sleep/__tests__/chronotype-section.test.tsx
@@ -80,7 +80,7 @@ describe("<ChronotypeSection>", () => {
     expect(html).not.toContain('data-slot="chronotype-error"');
   });
 
-  it("renders the large band treatment + midpoint clock on a settled DTO", () => {
+  it("renders the band value + midpoint clock on a settled DTO", () => {
     rhythmMock.mockReturnValue({
       data: READY_DTO,
       isLoading: false,
@@ -90,8 +90,10 @@ describe("<ChronotypeSection>", () => {
     expect(html).toContain('data-slot="chronotype-band"');
     expect(html).toContain("Evening type");
     expect(html).toContain("05:41");
-    // The section heading carries the chronotype title.
-    expect(html).toContain('data-slot="section-heading"');
+    // v1.19.0 — the duplicate standalone section heading is gone; the single
+    // chronotype title now lives inside the card, uniform with the debt tile.
+    expect(html).not.toContain('data-slot="section-heading"');
+    expect(html).toContain('data-slot="chronotype-card"');
   });
 
   it("renders nothing when disabled", () => {
diff --git a/src/components/insights/sleep/__tests__/sleep-rhythm-cards.test.tsx b/src/components/insights/sleep/__tests__/sleep-rhythm-cards.test.tsx
index c2c0bc53f..6dfe7a9ca 100644
--- a/src/components/insights/sleep/__tests__/sleep-rhythm-cards.test.tsx
+++ b/src/components/insights/sleep/__tests__/sleep-rhythm-cards.test.tsx
@@ -21,16 +21,16 @@ const PARTIAL_DEBT: SleepDebtDto = {
   debtMinutes: 0,
   needMinutes: 420,
   nightsCounted: 3,
-  windowNights: 14,
-  nightsUntilReady: 4,
+  windowNights: 5,
+  nightsUntilReady: 1,
 };
 
 const READY_DEBT: SleepDebtDto = {
   state: "ready",
-  debtMinutes: 600,
+  debtMinutes: 60,
   needMinutes: 420,
-  nightsCounted: 10,
-  windowNights: 14,
+  nightsCounted: 5,
+  windowNights: 5,
   nightsUntilReady: 0,
 };
 
@@ -65,11 +65,11 @@ describe("<SleepDebtCard>", () => {
     expect(html).not.toContain("short");
   });
 
-  it("asserts the cumulative debt in the ready state", () => {
+  it("asserts the running debt balance in the ready state", () => {
     const html = render(<SleepDebtCard debt={READY_DEBT} />);
-    // 600 min = 10h 0m short.
-    expect(html).toContain("10h 0m short");
-    expect(html).toContain("14 nights");
+    // 60 min = 1h 0m short — the small, recovering balance a normal sleeper sees.
+    expect(html).toContain("1h 0m short");
+    expect(html).toContain("5 nights");
   });
 
   it("inherits the standard Card rhythm (no compact override)", () => {
@@ -110,10 +110,11 @@ describe("<ChronotypeCard>", () => {
     expect(html).toContain("04:30");
   });
 
-  it("v1.18.7 W-D — renders the band as the large hero label, not a corner readout", () => {
+  it("v1.19.0 — renders the band as the bold primary value, uniform with the debt tile", () => {
     const html = render(<ChronotypeCard chronotype={READY_CHRONO} />);
-    // The reworked bottom treatment leads with a large band label + the
-    // natural-midpoint headline. The retired top-right corner readout is gone.
+    // The band is the primary value at the SAME text-2xl scale the debt tile
+    // uses for its hours figure; the natural-midpoint clock is the secondary
+    // line. The retired top-right corner readout is gone.
     expect(html).not.toContain('data-slot="chronotype-corner"');
     expect(html).toContain('data-slot="chronotype-band"');
     expect(html).toContain("Intermediate type");
diff --git a/src/components/insights/sleep/__tests__/sleep-rhythm-section.test.tsx b/src/components/insights/sleep/__tests__/sleep-rhythm-section.test.tsx
index 2d254ed3e..d4af80009 100644
--- a/src/components/insights/sleep/__tests__/sleep-rhythm-section.test.tsx
+++ b/src/components/insights/sleep/__tests__/sleep-rhythm-section.test.tsx
@@ -42,10 +42,10 @@ function render(node: React.ReactNode, locale: "en" | "de" = "en") {
 const READY_DTO: SleepRhythmDto = {
   sleepDebt: {
     state: "ready",
-    debtMinutes: 600,
+    debtMinutes: 60,
     needMinutes: 420,
-    nightsCounted: 10,
-    windowNights: 14,
+    nightsCounted: 5,
+    windowNights: 5,
     nightsUntilReady: 0,
   },
   chronotype: {
@@ -97,8 +97,8 @@ describe("<SleepRhythmSection>", () => {
       isError: false,
     });
     const html = render(<SleepRhythmSection enabled />);
-    expect(html).toContain("10h 0m short");
-    // The chronotype band lives in the separate bottom section now, never here.
+    expect(html).toContain("1h 0m short");
+    // The chronotype band lives in the separate sibling tile, never here.
     expect(html).not.toContain("Intermediate type");
     expect(html).not.toContain('data-slot="chronotype-band"');
   });
diff --git a/src/components/insights/sleep/chronotype-card.tsx b/src/components/insights/sleep/chronotype-card.tsx
index 4918e9813..03bb455e6 100644
--- a/src/components/insights/sleep/chronotype-card.tsx
+++ b/src/components/insights/sleep/chronotype-card.tsx
@@ -28,12 +28,16 @@ function hoursMinutes(totalMinutes: number): {
 /**
  * v1.17.0 — chronotype card (MCTQ MSF / MSFsc band + social jetlag).
  *
- * v1.18.7 W-D — reworked from a small corner-label card into the PROMINENT
- * bottom treatment of the Sleep view: a LARGE band label is the hero, with the
- * natural sleep-midpoint clock beneath it, and an "advanced" disclosure that
- * reveals social jetlag + the sleep-debt-corrected MSFsc. While `learning` it
- * keeps the calm "still learning your rhythm — N of M nights" copy and asserts
- * NO band. Warm, grounded copy; mobile-first.
+ * v1.19.0 — brought to the SAME tile shape as `<SleepDebtCard>` so the two sit
+ * uniform in the shared grid row: identical card chrome, an icon + `text-base`
+ * `CardTitle` header, then a `space-y-0.5` value block with a bold primary value
+ * (`text-2xl font-semibold`) and one secondary `text-xs muted` line. The primary
+ * value is the chronotype BAND (a label, the slot the debt tile fills with an
+ * hours figure); the concrete companion — the natural sleep midpoint clock — is
+ * the secondary line, so both tiles read "bold value + one grounded line" at the
+ * same scale. The "advanced" disclosure (social jetlag + sleep-debt-corrected
+ * MSFsc) stays. While `learning` it keeps the calm "still learning your rhythm —
+ * N of M nights" copy and asserts NO band. Warm, grounded copy; mobile-first.
  */
 export function ChronotypeCard({ chronotype }: { chronotype: ChronotypeDto }) {
   const { t } = useTranslations();
@@ -78,15 +82,13 @@ export function ChronotypeCard({ chronotype }: { chronotype: ChronotypeDto }) {
         </div>
       </CardHeader>
       <CardContent className="space-y-4">
-        {/* The band is the hero of the bottom treatment — a large label the
-            eye lands on first, with the natural sleep-midpoint clock as the
-            grounding caption beneath it. */}
-        <div className="space-y-1" data-slot="chronotype-band">
-          <p className="text-foreground text-2xl font-semibold tracking-tight sm:text-3xl">
-            {bandLabel}
-          </p>
+        {/* Uniform with the sleep-debt tile: a bold primary value (the band) at
+            the same scale, with the concrete companion (natural sleep midpoint
+            clock) as the secondary muted line. */}
+        <div className="space-y-0.5" data-slot="chronotype-band">
+          <p className="text-2xl font-semibold">{bandLabel}</p>
           {msfClock && (
-            <p className="text-muted-foreground text-sm">
+            <p className="text-muted-foreground text-xs">
               {t("insights.sleep.chronotype.midpointHeadline", {
                 clock: msfClock,
               })}
diff --git a/src/components/insights/sleep/chronotype-section.tsx b/src/components/insights/sleep/chronotype-section.tsx
index 39f577634..38d27879d 100644
--- a/src/components/insights/sleep/chronotype-section.tsx
+++ b/src/components/insights/sleep/chronotype-section.tsx
@@ -1,28 +1,28 @@
 "use client";
 
-import { Clock } from "lucide-react";
-
 import { useAuth } from "@/hooks/use-auth";
 import { Skeleton } from "@/components/ui/skeleton";
 import { useTranslations } from "@/lib/i18n/context";
-import { SectionHeading } from "@/components/insights/section-heading";
 import { useSleepRhythm } from "./use-sleep-rhythm";
 import { ChronotypeCard } from "./chronotype-card";
 
 /**
- * v1.18.7 W-D — chronotype as the prominent bottom block of the Sleep view.
+ * v1.18.7 W-D — chronotype card on the Sleep view.
  *
- * Split out of `<SleepRhythmSection>` (which now owns only the sleep-debt
- * headline) so the chronotype gets a full-width treatment at the end of the
- * page: a large band label, the natural sleep-midpoint clock beneath it, and an
- * expandable disclosure for social jetlag + MSFsc. Reads the SAME
- * server-authoritative DTO via `useSleepRhythm`, so it shares the
+ * v1.19.0 — the standalone "Chronotyp" `<SectionHeading>` was removed: it
+ * duplicated the heading the `<ChronotypeCard>` already carries in its own
+ * `CardTitle`, so "Chronotype" appeared twice and the tile no longer matched
+ * its sibling (the sleep-debt tile, which has no section heading). The card now
+ * stands as a peer of `<SleepDebtCard>` inside the shared grid row — same card
+ * chrome, one heading each, rendered inside the tile.
+ *
+ * Reads the SAME server-authoritative DTO via `useSleepRhythm`, so it shares the
  * `["sleep-rhythm"]` cache the debt section already warmed — no extra
  * round-trip. Gated on `enabled` so a source-less account never fetches.
  *
  * States mirror the debt section: loading → skeleton, error → quiet inline
- * notice, settled → the card (which carries its own calm "still learning"
- * copy for the no-nights-yet case, since the route always returns a full DTO).
+ * notice, settled → the card (which carries its own calm "still learning" copy
+ * for the no-nights-yet case, since the route always returns a full DTO).
  */
 export function ChronotypeSection({ enabled }: { enabled: boolean }) {
   const { isAuthenticated } = useAuth();
@@ -33,28 +33,26 @@ export function ChronotypeSection({ enabled }: { enabled: boolean }) {
 
   if (!enabled) return null;
 
-  return (
-    <section data-slot="chronotype-section" className="space-y-3">
-      <SectionHeading
-        icon={Clock}
-        title={t("insights.sleep.chronotype.title")}
+  if (isError) {
+    return (
+      <div
+        data-slot="chronotype-error"
+        role="status"
+        className="bg-card border-border text-muted-foreground rounded-xl border p-4 text-sm"
+      >
+        {t("insights.sleep.rhythm.loadError")}
+      </div>
+    );
+  }
+
+  if (isLoading || !data) {
+    return (
+      <Skeleton
+        data-slot="chronotype-loading"
+        className="h-32 w-full rounded-xl"
       />
-      {isError ? (
-        <div
-          data-slot="chronotype-error"
-          role="status"
-          className="bg-card border-border text-muted-foreground rounded-xl border p-4 text-sm"
-        >
-          {t("insights.sleep.rhythm.loadError")}
-        </div>
-      ) : isLoading || !data ? (
-        <Skeleton
-          data-slot="chronotype-loading"
-          className="h-32 w-full rounded-xl"
-        />
-      ) : (
-        <ChronotypeCard chronotype={data.chronotype} />
-      )}
-    </section>
-  );
+    );
+  }
+
+  return <ChronotypeCard chronotype={data.chronotype} />;
 }