Sleep Cycle Calculator
Find bedtime options from a target wake time.
Six cycles bedtime
21:45
Five cycles bedtime
23:15
Four cycles bedtime
00:45
Formula
bedtime = wake time - sleep cycles - fall asleep time
Find bedtime options from a target wake time.
How to Use
Find bedtime options from a target wake time. Enter the Wake time, Cycle minutes, and Fall asleep minutes values and review the Six cycles bedtime, Five cycles bedtime, and Four cycles bedtime outputs after you calculate.
- Open the calculator : Start with Sleep Cycle Calculator.
- Enter values : Fill in the required inputs and any optional settings.
- Review the result : Read the output and use the about page for more detail if needed.
Common Questions
What does the Sleep Cycle Calculator estimate?
It estimates bedtime or wake-up times based on sleep-cycle timing.
What can change the result?
The sleep-cycle timing and wake window you choose can change the estimate.