😴 Sleep Cycle Calculator
Based on 90-minute sleep cycles — wake up between cycles, not in the middle of one.
Recommended Bedtimes
Includes ~14 minutes to fall asleep. Each option is a full number of 90-minute cycles.
Based on 90-minute sleep cycles — wake up between cycles, not in the middle of one.
Includes ~14 minutes to fall asleep. Each option is a full number of 90-minute cycles.