Optimize your sleep by calculating ideal bedtime and wake-up times based on natural 90-minute sleep cycles. Includes relaxing sounds and meditation to help you fall asleep faster and wake up feeling refreshed.
8.6
July 7, 2026
Some errors from the previous version were corrected.
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Sleep Calculator App calculates your best bedtime by working backward from your desired wake-up time, factoring in natural 90-minute sleep cycles. It aims to have you wake up at the end of a cycle.
The app suggests that the average person takes about 15 minutes to fall asleep. This is considered in its calculations to ensure you are asleep before your desired wake-up window.
No, Sleep Calculator App does not require any registration. You can start using its features immediately upon downloading the app.
Sleep Calculator App is available on iPhone, iPad, and iPod. It is designed to be compatible with these Apple devices.
Sleep Calculator App has an age rating of 4+. This indicates it is suitable for children and adults.
The latest version of Sleep Calculator App is 8.4, and it was last updated on March 16, 2026. This suggests a recent update, though specific update frequency is not detailed.
Yes, Sleep Calculator App contains advertisements. It is a free app that supports its development through ads.
Sleep Calculator App recommends aiming for 3 to 6 complete 90-minute sleep cycles for a good night's sleep. Waking up at the end of a cycle is key to feeling rested.
