# WhenToSleep - Bedtime Alarm — Sleep planner & nap timer

> Sleep planner & nap timer (iPhone/iPad app by chanhyeok choi.)

- Source: https://appshunter.io/ios/app/whentosleep-bedtime-alarm/id6758732586 (this page in markdown: same URL + `.md`)
- Developer: [chanhyeok choi](https://appshunter.io/developer/1799983470)
- Category: Health & Fitness, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.2 · 259 MB
- Languages: American English, Japanese, Korean
- Released: 2026-02-09
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/whentosleep-bedtime-alarm/id6758732586/reviews.md

## What is WhenToSleep?

Choose when you want to wake up,
and we’ll tell you when to go to bed.

WhenToSleep helps you build a calmer sleep routine with:
• Recommended bedtimes based on your wake-up time
• Bedtime alarm (gentle “time to sleep” reminder)
• Wake alarm
• Fall-asleep buffer setting
• Repeat alarms by weekday
• Custom alarm sounds

If you don’t hear sound:
• Check iOS Settings > Notifications > WhenToSleep and make sure Sounds are enabled.
• Focus modes / Silent mode / volume can affect notification audio.

Privacy:
• No account, no login
• Your settings stay on your device

Sleep well.


## Version history (last 5 releases)

### 3.3 — 2026-08-11

Your alarm now rings on time, with the sound you chose.
[New]
- Set your own sleep length, anywhere from 4 to 12 hours in 15-minute steps.
- Start from bedtime instead of wake time and get a suggested time to get up.
- Add a Bedtime Countdown widget to your Lock Screen. Pick one of three designs, and tap it at bedtime to start sleep mode right away.
[Improved]
- The whole app got a visual tidy-up: consistent type, spacing, and fewer colors.
- On nights you start sleep mode, your wake alarm sounds just after your wake time even if the app closes overnight.
- Home shows last night's sleep as soon as you wake up.
- Snoring measurement keeps going if a call comes in, and the measured time is more accurate.
- Nights when the microphone was off now show snoring as "Not measured" instead of 0 minutes.
[Fixed]
- Saying no to notifications no longer leaves you stuck on the welcome screens.
- Your wake alarm and bedtime reminder now ring with the sound you picked.
- The alarm rings even if your screen was off when your wake time arrived.
- Your sleep history no longer disappears, and nights you slept by tapping the star show up on Home and in your stats.
- Turning off bedtime reminders no longer turns off your wake alarm.
- Snooze on a bedtime reminder now brings it back at the time you picked.
- If you take a call while the alarm is ringing, the alarm starts again once the call ends.
- Nights you slept with the microphone turned off are now saved to your sleep history.
- On devices that use AM/PM, bedtime no longer shows as a 24-hour number.
- Your streak stays intact when you open the app after midnight.
- Changing your wake time now clears an alarm left at the old time.

### 3.2 — 2026-08-09

Snoring recordings are easy to find again
[Fixed]
- Snoring recordings you heard in the morning could not be found again
  afterwards
- Tapping a sleep record did not always open its recordings
- Text on the moon could appear broken
- Sleep records could be lost in rare cases
[Improved]
- The sleep records list now shows all of your saved records
- Every record now has a "Listen" button for its recordings
- Added a note that snoring recordings are kept for 7 days
- Fixed times in the sleep records list wrapping mid-number

### 3.1 — 2026-08-06

The widget now appears right away

- Fixed the Home Screen widget staying blank and gray for a long time
  after you added it
- The background illustration and your time until bedtime show
  immediately

### 3.0 — 2026-08-04

Alarms you can actually rely on
[Important fixes]
- Your chosen alarm sound now plays properly, even with the app closed
- Wake alarms now ring during Sleep Focus
- Turning off "Bedtime reminders" no longer cancels your wake alarm
- The alarm still rings if the app was suspended past your wake time
- Fixed the Home Screen widget showing no illustration
- Fixed the Lock Screen showing "Past bedtime" before your actual bedtime
[New]
- Custom sleep duration: set any length instead of the fixed 7.5 hours
- Set by bedtime: pick when you go to bed and we'll suggest your wake time
- The widget illustration can now be turned off
- The widget now shows time until bedtime during the day, too
[Improvements]
- More accurate snoring detection
- Apple Watch sleep stage numbers now match the Health app
- Your morning report now celebrates your longest sleep and streaks
- Faster entry into Sleep Mode
- Many other fixes throughout the app
Thank you for all your feedback. Sleep well.

### 2.6 — 2026-05-12

v2.6 Update

- Lock Screen Live Activity: View your bedtime, wake-up time, and countdown to bedtime directly on your Lock Screen.
- Past bedtime indicator turns red to remind you it is time to sleep.
- Easily toggle Live Activity on or off from the home screen.
- Improved bedtime reminder to respect your notification settings.
- Stability improvements and bug fixes

## Apps similar to WhenToSleep

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [yoursleep-Sleep Tracker,Shorts](https://appshunter.io/ios/app/yoursleep-sleep-trackershorts/id6759917130) | — | Free | Health & Fitness |
| [Bedtime Reminder: Sleep Now](https://appshunter.io/ios/app/bedtime-reminder-sleep-now/id6757484846) | — | Free | Health & Fitness |
| [Smashphone: Pickleball, Tennis](https://appshunter.io/ios/app/smashphone-pickleball-tennis/id6779093089) | 5.0 (1) | Free | Health & Fitness |
| [Pulse Canvas](https://appshunter.io/ios/app/pulse-canvas/id6761065393) | — | Free | Health & Fitness |
| [Steady: Shift Sleep](https://appshunter.io/ios/app/steady-shift-sleep/id6768091450) | 5.0 (1) | Free | Health & Fitness |
| [MRALA - Bedtime Reminder](https://appshunter.io/ios/app/mrala-bedtime-reminder/id6762996384) | 5.0 (1) | Free | Health & Fitness |

## More apps by chanhyeok choi

- [Neko Tuner – Guitar & Bass](https://appshunter.io/ios/app/neko-tuner-guitar-and-bass/id6749933012)
- [Self-Suggestion: Affirmations](https://appshunter.io/ios/app/self-suggestion-affirmations/id6754752885)
- [Dare30 - Daily Habit Trackerm](https://appshunter.io/ios/app/dare30-daily-habit-trackerm/id6760480813)
- [aeiouJP - Learn Japanese](https://appshunter.io/ios/app/aeioujp-learn-japanese/id6761683071)
- [Sojung Filter - Film Editor](https://appshunter.io/ios/app/sojung-filter-film-editor/id6762511423)

All apps by chanhyeok choi: https://appshunter.io/developer/1799983470

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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 2026-08-14.*