Sleep Calculator
Optimal Sleep
Calculate optimal wake-up or bedtime based on 90-minute sleep cycles.
Recommended Times (by cycle)
5 cycles
06:44
7.5h
6 cycles
08:14
9h
7 cycles
09:44
10.5h
Includes ~14 min to fall asleep
Chronotype
Intermediate: Aim for 10–11pm bedtime, 7–8am wake.
Sleep Debt Calculator
Sleep Debt-1.0h