Auto Sleep Detector & Tracker

Identify sleep & nap patterns

Free · Designed for iPhone. Not verified for macOS.

Review editable sleep estimates from app inactivity, refine them with optional Apple Health and Watch evidence, and keep your data on device. Understand when you may have slept—even if you forgot to start a timer. Sleep Detector notices how long the app has been away. When you return after a long interval, it creates an editable sleep estimate for review. App-away time alone is not treated as proof of sleep: low-confidence estimates always wait for your confirmation. For more context, optionally connect Apple Health and the Apple Watch companion. Sleep stages and selected recovery signals can refine a candidate; only periods you confirm are written back to Health when sync is enabled. REVIEW BEFORE SAVING • Inspect estimated start and end times • See confidence and evidence details • Edit, confirm, or dismiss each estimate • Review history, trends, and daily wellness context APPLE WATCH + HEALTH • View last night's duration and stages on your wrist • Refresh on demand—no continuous sensor workout • Read Health data only after permission • Write only confirmed sleep periods • Avoid duplicate Health entries PRIVATE BY DESIGN • No account • No advertising or tracking • No cloud sleep profile • On-device storage and analysis • User-initiated JSON and CSV export BATTERY CONSCIOUS Sleep Detector records lightweight app lifecycle timestamps instead of running a continuous background sensor session. iOS may suspend apps; the estimate is completed when Sleep Detector is reopened. Sleep Detector supports awareness and journaling. It is not a medical device and does not diagnose sleep disorders. Results depend on available evidence and user confirmation.

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Sleep detection is now more dependable, more transparent, and easier to review. - Sleep Detector now completes an inactivity estimate when you return to the app, including after iOS suspends or restarts it. - New Apple Watch support brings Apple Health sleep stages and optional recovery signals into your private daily insights. - Confirmed sleep periods can sync to Apple Health, with duplicate protection and clear permission controls. - Every automatic estimate includes confidence details and remains editable before you save it. - Improved lifecycle timing, Health sync retry behavior, battery efficiency, and overall stability. Your sleep and wellness data stays private and is processed on your devices.

The developer, SimpliXio Pte. Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Dark Interface

    Provider
    • SimpliXio Pte. Ltd.
    Size
    • 42 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    • Apple Watch
      Requires watchOS 9.4 or later.
    Languages
    • English
    Age Rating
    9+
    Copyright
    • © 2026 SimpliXio Pte. Ltd.