❤️ Health & Fitness

Sleep Calculator — Best Bedtimes

Enter your wake-up time and we calculate the ideal bedtimes that align with complete 90-minute sleep cycles — so you wake up refreshed, not groggy.

I want to wake up at

Sleep cycles last ~90 minutes. Good bedtimes to hit complete cycles:

Recommended Bedtimes

It takes ~14 min to fall asleep (built in)