
About
This tool helps you determine the best times to go to sleep or wake up to feel more refreshed. It calculates optimal times based on natural 90-minute sleep cycles, aiming to avoid waking you mid-cycle.
What's New in Deep Sleep Sounds & Calculator
1.1.0
June 5, 2026
We've added sleep sounds and a timer feature.
User reviews
Developer apps
FAQ
How does Sleep Calculator determine the best wake-up times?
Sleep Calculator assumes it takes about 15 minutes to fall asleep and calculates ideal wake times based on complete 90-minute sleep cycles. It aims to wake you between these cycles for a more refreshed feeling.
What is the optimal bedtime calculation for Sleep Calculator?
You can input your desired wake-up time, and Sleep Calculator will suggest the optimal bedtime to align with your natural 90-minute sleep cycles, helping you avoid waking up mid-cycle.
Does Sleep Calculator have ads?
Yes, Sleep Calculator contains advertisements. It is offered as a free application supported by ads.
What devices does Sleep Calculator support?
Sleep Calculator is supported on iPhone and iPod devices. It is designed for iOS users.
What is the age rating for Sleep Calculator?
Sleep Calculator has an age rating of 4+, making it suitable for a wide range of users.
How often is Sleep Calculator updated?
The latest version of Sleep Calculator is 1.1.0, and it was last updated on June 5, 2026. Updates aim to improve functionality and user experience.
What is the user sentiment for Sleep Calculator?
Based on the available data, Sleep Calculator has a rating of 3.5 stars from 2 ratings. User feedback is limited but suggests a mixed reception.
Is Sleep Calculator free to download?
Yes, Sleep Calculator is available for free download. The app is supported by advertisements.


