Optimal Bedtime Calculator

Calculate your ideal bedtime based on sleep cycles to wake up feeling refreshed and energized

Based on 90-minute sleep cycles for optimal rest

What time do you need to wake up?

How many sleep cycles do you want?

4 cycles (6 hours)

Minimum recommended

5 cycles (7.5 hours)

⭐ Recommended

6 cycles (9 hours)

Optimal for many

7 cycles (10.5 hours)

Extended rest

Sleep cycles are approximately 90 minutes long. Waking at the end of a cycle helps you feel more refreshed than waking during deep sleep.