Sleep Calculator

Wake up refreshed with perfect sleep cycles

Wake-up time

Go to sleep at…

09:46 PM

6 cycles · 9h

Optimal

11:16 PM

5 cycles · 7h 30m

Good

12:46 AM

4 cycles · 6h

Fair

02:16 AM

3 cycles · 4h 30m

Minimal

Based on 90-min sleep cycles + ~14 min to fall asleep