Sleep Cycle Bedtime Calculator
Kai Oelfke Health & Fitness iPhoneiPadiPod touchApple Watch
Sleep Cycle Bedtime Calculator is a free Health & Fitness app for iPhone and iPad by Kai Oelfke. Rated 4.1/5 from 295 ratings. Requires iOS 18.0.
- Rating
- 4.1
- 295 ratings
- Price
- Free
- on the App Store
- Size
- 28 MB
- Age 4+
- Updated
- Sep 4
- 2026 · v1.0.11
Screenshots
About Sleep Cycle Bedtime Calculator
Sleep smarter. Feel more refreshed. Calculate the best time to wake up or when to go to bed. It's based on sleep cycles. They're about 90 minutes each and it's good to get 5-6 cycles. Sleeping at midnight for 5 cycles? Wake up at 7:30 AM. Need to wake up at 6:00 AM, but want 6 cycles? Then hit the bed at 9:00 PM. Not falling asleep immediately? Customize your fall asleep time. PS: Most people need ~ 15 minutes to fall asleep. - Apple Watch support - Customize time to fall asleep Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & reviews
4.1
295 ratings
What’s new
Version 1.0.11 · Updated September 4, 2026
• Choose from ten new alarm sounds or use the system default. • Tap a calculated bedtime or wake-up time to schedule alarms, in addition to swiping. • Bug fixes and stability improvements.
App privacy
The developer, Kai Oelfke, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Sleep Cycle Bedtime Calculator
Looking for apps like Sleep Cycle Bedtime Calculator? Here are 6 similar apps on the App Store. The highest rated is Sleep Cycle - Tracker & Sounds (4.7/5), and all 6 are free to download.
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Sleep Cycle - Sleep Calculator
4.5
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Sleep Cycle - Tracker & Sounds
4.7
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Sleep Time: Cycle Alarm Clock
4.7
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Pillow: Sleep Tracker
4.4
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Sleepzy - Sleep Cycle Tracker
4.3
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Sleepwave: Alarm & Tracker
4.7
| App | Rating | Price | Last updated |
|---|---|---|---|
| Sleep Cycle Bedtime Calculator | 4.1 / 5 (295 ratings) | Free | September 4, 2026 |
| Sleep Cycle - Sleep Calculator | 4.5 / 5 (19) | Free | Jul 2, 2026 |
| Sleep Cycle - Tracker & Sounds | 4.7 / 5 (29,514) | Free | Sep 11, 2026 |
| Sleep Time: Cycle Alarm Clock | 4.7 / 5 (5,371) | Free | Jul 24, 2026 |
| Pillow: Sleep Tracker | 4.4 / 5 (95,703) | Free | Sep 24, 2026 |
| Sleepzy - Sleep Cycle Tracker | 4.3 / 5 (22,371) | Free | Apr 15, 2025 |
| Sleepwave: Alarm & Tracker | 4.7 / 5 (6,589) | Free | Sep 26, 2026 |