diff --git a/app/hooks/useDraftAuthRecovery.ts b/app/hooks/useDraftAuthRecovery.ts
index 7c28fe3..fcb6988 100644
--- a/app/hooks/useDraftAuthRecovery.ts
+++ b/app/hooks/useDraftAuthRecovery.ts
@@ -118,6 +118,17 @@ export function useDraftAuthRecovery({
     };
   }, [currentUserId, authDegraded, revalidate]);
 
+  // Periodically ping the session endpoint to keep it alive during long drafts.
+  useEffect(() => {
+    if (authDegraded) return;
+    const FIFTEEN_MINUTES = 15 * 60 * 1000;
+    const id = setInterval(async () => {
+      const { data: session } = await authClient.getSession();
+      if (!session) setAuthDegraded(true);
+    }, FIFTEEN_MINUTES);
+    return () => clearInterval(id);
+  }, [authDegraded]);
+
   // Track revalidation lifecycle to sync local state from fresh loader data.
   const revalidatorStateRef = useRef(revalidatorState);
   const isRevalidatingRef = useRef(false);