This utility helps you determine the ideal times to sleep or wake up by calculating based on natural 90-minute sleep cycles. It aims to help users feel more refreshed and energized by waking them between these cycles.



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With an average user rating of 4.6★, the sleep calculator plus category is one of the App Store's strongest. Browse all 245+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (14) | No | No | Aug 2026 | ||
| 2 | Free was $0.99 | 5.0★ (1) | No | No | Sep 2026 | ||
| 3 | Free | 5.0★ (75) | No | No | Aug 2026 | ||
| 4 | Free | 4.9★ (13) | No | Yes | Aug 2026 | ||
| 5 | Free | 4.3★ (22K) | Yes | Yes | Sep 2026 | ||
| 6 | Free | 3.0★ (2) | Yes | Yes | Aug 2026 | ||
| 7 | Free | 4.7★ (19) | No | No | Aug 2026 | ||
| 8 | Free | 3.7★ (22) | No | No | May 2026 |



This utility helps you determine the ideal times to sleep or wake up by calculating based on natural 90-minute sleep cycles. It aims to help users feel more refreshed and energized by waking them between these cycles.



This app calculates your ideal bedtime and wake-up times using a 90-minute sleep cycle theory. It features a night-friendly interface and offers professional sleep advice to help you wake up refreshed.






This app helps you determine the optimal times to go to sleep and wake up to align with your natural 90-minute sleep cycles. It calculates ideal bedtime based on your desired wake-up time and vice-versa, promoting a more rested feeling upon waking. It also includes features for tracking sleep phases and a smart alarm to wake you gently.