# Sleep Health Alarm — Wake up by sleep cycles

> Wake up by sleep cycles (iPhone/iPad app by Thai Nguyen.)

- Source: https://appshunter.io/ios/app/sleep-health-alarm/id6780420369 (this page in markdown: same URL + `.md`)
- Developer: [Thai Nguyen](https://appshunter.io/developer/1896659071)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 1 MB
- Languages: Vietnamese
- Released: 2026-06-15
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/sleep-health-alarm/id6780420369/reviews.md

## What is Sleep Health Alarm?

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.


## Version history (last 1 release)

### 1.0 — 2026-06-15

No release notes.

## More apps by Thai Nguyen

- [Danhpick - Pickleball VN](https://appshunter.io/ios/app/danhpick-pickleball-vn/id6769448467)

All apps by Thai Nguyen: https://appshunter.io/developer/1896659071

## Related topics

[sleep health alarm](https://appshunter.io/ios/topics/sleep-health-alarm)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-18.*