Sleep Debt: Rest & Recover is made and published by
博志 袁.
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published on the App Store.
About Sleep Debt: Rest & Recover
Sleep Debt: Rest & Recover is a health & fitness app developed by 博志 袁.
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App Information
Sleep Debt: Rest & Recover is freely available from the App Store. The app size is 6.88 MB. The latest version available is 1.0.1. The last update was on June 1, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Description by 博志 袁(from the App Store)
Sleep Debt turns your Apple Health sleep data into a single, honest number: how many hours of sleep you actually owe yourself.
Most of us lose a little sleep most nights — 30 minutes here, an hour there — and never see the running total. Sleep Debt does the math for you over a rolling 14-day window, weighted toward your most recent nights, and tells you what tonight should look like to start catching up.
WHAT YOU SEE • Today's sleep balance — how much you're behind (or ahead of) your goal • An ideal bedtime for tonight, calculated from your goal wake time • A 14-day history with weekly and daily breakdowns • Time in each sleep stage when Apple Health has staged data • A monthly calendar that lets you spot patterns at a glance
HOW IT WORKS Sleep Debt uses a 14-day rolling window. Each night's deficit (goal minus actual sleep) is weighted exponentially so recent nights count more than older ones. The recommendation for tonight follows published sleep research: roughly a quarter of your accumulated debt can be repaid in a single night, capped at +/- 1.5 hours and held within a healthy 6 to 10 hour range.
You can read the reasoning behind the algorithm inside the app under "How Sleep Debt Works."
A GENTLE BEDTIME REMINDER Turn on Bedtime Reminder and Sleep Debt will schedule a local notification a few minutes before tonight's recommended bedtime. The reminder time updates as your sleep data changes — no servers, no accounts.
YOUR DATA STAYS ON YOUR DEVICE • Sleep Debt reads sleep samples from Apple Health (read-only) • Nothing is uploaded, synced, or shared with any third party • No accounts, no advertising, no analytics, no tracking • Revoke access at any time in Settings > Health
REQUIREMENTS • iPhone running iOS 18 or later • Sleep data in Apple Health (from Apple Watch, third-party trackers, or manual entry)
Sleep Debt is an awareness and planning tool, not a medical device. It does not diagnose sleep disorders. If you have ongoing concerns about your sleep, please talk to a qualified clinician.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
