Sleep Health Alarm

Wake up by sleep cycles

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Wake up at the end of a sleep cycle and feel refreshed, not groggy. Pick a bedtime or a wake time — we do the math instantly. Sleep Health Alarm helps you wake up at the right moment in your sleep cycle, so you start every morning alert and refreshed. Sleep happens in roughly 90-minute cycles, each with four stages: light sleep (N1, N2), deep sleep (N3), and REM (dreaming). If your alarm rings during deep sleep, you wake up groggy. Sleep Health Alarm times your alarm for the END of a cycle — during light sleep — so waking up feels natural and easy. FEATURES • Bedtime mode: pick a bedtime (or "Sleep now") and get the best wake-up times based on 4–6 full cycles. • Wake-up mode: pick when you want to wake and get suggested bedtimes. • Set a real alarm straight from a suggestion — it rings even when your phone is on silent (powered by iOS AlarmKit). • Adjustable fall-asleep buffer (15 minutes by default). • Bilingual English–Vietnamese, with a calm dark interface for nighttime. COMPLETELY FREE No ads. No in-app purchases. No account. No personal data collected — everything is calculated right on your device. Sleep smarter and wake up better, every day, with Sleep Health Alarm.

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The developer, Thai Nguyen, 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, for example, based on the features you use or your age. Learn More

    Accessibility

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    Information

    Seller
    Thai Nguyen
    Size
    1.4 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    Vietnamese
    Age Rating
    4+
    Copyright
    © 2026 Thai Nguyen
  • Privacy Policy

    • More by Thai Nguyen

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