Sleep Cycle Calculator
Sleep Cycle Calculator – Wake Up Refreshed & Sleep Windows
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About Sleep Cycle Calculator
A Sleep Cycle Calculator plans rest intervals to ensure you wake up at the end of a natural sleep cycle, minimizing morning grogginess.
How It Works
The calculator uses 90-minute sleep cycles plus a 15-minute falling asleep buffer, projecting optimal wake-up times or bedtimes.
How to Use Sleep Cycle Calculator
- Select your mode: determine bedtime by wake time, or determine wake times by sleep time.
- Enter your target time and choose how many sleep cycles you want to complete.
- Review the list of optimal bedtimes or wake windows recommended.
FAQ
How many sleep cycles should I aim for?
Most people feel best after 5 or 6 complete sleep cycles (7.5 to 9 hours of sleep).
Under the hood
Calculates optimal sleep windows using standard 90-minute sleep cycle intervals.
Engineered by HaorGrix