Sleep Cycles is a small personal Android app I built for myself to quickly calculate bedtime and wake-up times using sleep cycles.
If it helps someone else too, just download the APK and use it.
- Calculates suggested times based on sleep cycles and includes a 15-minute fall-asleep buffer in every calculation.
- Supports two core modes:
- Want to wake up — choose your target wake-up time and get recommended bedtimes.
- Sleeping now — use the current time and get recommended wake-up times.
- Saves your calculation history.
- Includes settings for language (RU/UK/EN), dark theme, and cycle duration (75/90/105/120 min).
- Has a reminders section (currently an MVP placeholder).
No setup or installation steps are needed in this README.
A ready-to-install Android APK is available in the repository Releases.
To install the APK on Android, you may need to allow app installation from unknown sources (for your browser or file manager) in your phone settings.
This app was created for personal use.
The APK is shared publicly as-is for anyone who wants to use it.
The project will continue to receive updates, and new features will be added over time.