😴 Sleep Calculator
Find best bedtime based on sleep cycles.
Quick Answer
Count backwards from wake time by 4-6 cycles (90min each) plus 15min to fall asleep.
Example: Wake 7:00 → Sleep 9:45 PM (6 cycles) or 11:15 PM (5 cycles)
How to Calculate
Count backwards from wake time by 4-6 cycles (90min each) plus 15min to fall asleep.
Examples
- Wake 7:00 → Sleep 9:45 PM (6 cycles) or 11:15 PM (5 cycles)
FAQs
Hours of sleep needed?
Most adults need 7-9 hours.