Sleep calculator
Wake up between 90-minute sleep cycles and feel rested.
Wake-up time
Time to fall asleep
Go to bed at
Includes 15 min to fall asleep- 8 cycles6:45PM12h of sleep
- 7 cycles8:15PM10h 30m of sleep
- 6 cyclesRecommended9:45PM9h of sleep
- 5 cyclesRecommended11:15PM7h 30m of sleep
- 4 cycles12:45AM6h of sleep
- 3 cycles2:15AM4h 30m of sleep