# sleeptimes

> sleeptimes (iPhone/iPad app by 贺 周.)

- Source: https://appshunter.io/ios/app/sleeptimes/id6758449726 (this page in markdown: same URL + `.md`)
- Developer: [贺 周](https://appshunter.io/developer/1815397078)
- Category: Utilities, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 2 MB
- Languages: American English
- Released: 2026-02-06
- Data updated: 2026-08-01
- User reviews in markdown: https://appshunter.io/ios/app/sleeptimes/id6758449726/reviews.md

## What is sleeptimes?

Please note: This app provides general sleep timing suggestions based on common sleep cycle concepts. It is not medical advice. Consult a healthcare professional for sleep concerns.

Sleep Calculator helps you plan sleep schedules based on the 90-minute sleep cycle concept. This approach suggests that sleeping in complete cycles may help you wake up feeling more refreshed.

HOW IT WORKS:
- Enter your desired wake-up time to get suggested bedtimes
- Enter your planned bedtime to get suggested wake-up times
- Each suggestion shows estimated sleep cycles (5-6 cycles is about 7.5-9 hours)
- Visual indicators highlight suggested time ranges

ABOUT SLEEP CYCLES:
Many people find that waking up at the end of a sleep cycle (about every 90 minutes) feels more natural than waking up mid-cycle. This app helps you explore this concept for your own sleep planning.

WHO MIGHT FIND THIS HELPFUL:
- People with varying work schedules
- Students managing study and sleep
- Parents coordinating family routines
- Anyone interested in exploring sleep timing

FEATURES:
- Two calculation modes (bedtime or wake-up time)
- Visual sleep cycle indicators
- Simple, clean interface
- Works offline
- Dark mode support
- No account required

NO SUBSCRIPTIONS - NO ADS - NO DATA TRACKING

Download and explore sleep timing that works for you!

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Important: This app provides general sleep timing suggestions based on commonly discussed sleep cycle concepts. Individual sleep needs vary. This is not medical advice, diagnosis, or treatment. Consult a healthcare professional for persistent sleep concerns.


## Version history (last 1 release)

### 1.0 — 2026-02-06

No release notes.

## More apps by 贺 周

- [多功能驱蚊灯 --多模式，驱蚊，阅读，小夜灯，可定时熄屏睡眠](https://appshunter.io/ios/app/id6746356117)
- [Scientific math Calculator](https://appshunter.io/ios/app/scientific-math-calculator/id6759213986)
- [bingotimer](https://appshunter.io/ios/app/bingotimer/id6759560391)
- [filefinder pro](https://appshunter.io/ios/app/filefinder-pro/id6759831480)
- [FamHero](https://appshunter.io/ios/app/famhero/id6760260869)

All apps by 贺 周: https://appshunter.io/developer/1815397078

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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 2026-08-01.*