Optimal schedule
22:30
Go to bed at:
Closest to the optimal recovery time for your age and current time to fall asleep.
When your night starts at 22:30, it is easy to think half an hour makes no difference. Small shifts still change the sleep available before your alarm.
Falling asleep
22:30
Default time to fall asleep
15 min
Result
06:15
Your best wake-up time is calculated immediately.
Results
Optimal schedule
22:30
Go to bed at:
Closest to the optimal recovery time for your age and current time to fall asleep.
Standard schedule
22:30
Go to bed at:
A balanced option for a practical compromise between sleep duration and your daily schedule.
Minimum schedule
22:30
Go to bed at:
A shorter fallback when you need complete cycles despite having limited time.
Short schedule
22:30
Go to bed at:
A shorter fallback when you need complete cycles despite having limited time.
The extra 30 minutes shift the estimated cycles and wake-up times. This suits people who rarely go to bed exactly at 22:00 but still want a relatively early, regular rhythm.
This bedtime can fit a regular week. Consider both your total sleep and the estimated cycle-based wake-up options.
The bedtime is already set to 22:30. The calculator shows several wake-up options.
The difference matters most if it cuts your night short. A later wake-up time can preserve your total sleep.
It starts at 15 minutes. Change it and select Recalculate to match your circumstances.
If you are choosing between bedtimes, compare nearby schedules. This helps you see whether shifting bedtime by 30–60 minutes gives you a better wake-up time.