Ideal Wake-Up Time Calculator
A sleep calculator helps you find the best times to wake up based on 90-minute sleep cycles. Waking up at the end of a cycle can leave you feeling refreshed and energized.
Wakeup Time Calculator
Enter your bedtime to find the best wakeup times based on 90-minute sleep cycles.
Why Sleep Cycles Matter
During sleep, your body goes through multiple 90-minute cycles of light sleep, deep sleep, and REM sleep. Waking up during deep sleep can cause grogginess and fatigue, while waking at the end of a cycle helps you feel more refreshed and alert.
How to Use This Calculator
Simply input your bedtime, and our calculator will suggest optimal wake-up times that align with your natural sleep cycles, helping you achieve better quality rest and wake up feeling energized.
Last updated: Jun 2025