Optimal schedule
23:15
Go to bed at:
Closest to the optimal recovery time for your age and current time to fall asleep.
A 07:00 alarm gives you a little more room, but it still helps to plan. The wake-up time is already set so you can compare practical bedtime options.
Wake-up
7
Default time to fall asleep
15 min
Result
23:15
Your best bedtime is calculated immediately.
Results
Optimal schedule
23:15
Go to bed at:
Closest to the optimal recovery time for your age and current time to fall asleep.
Standard schedule
21:45
Go to bed at:
A balanced option for a practical compromise between sleep duration and your daily schedule.
Minimum schedule
20:15
Go to bed at:
A shorter fallback when you need complete cycles despite having limited time.
Short schedule
00:45
Go to bed at:
A shorter fallback when you need complete cycles despite having limited time.
This suits people who want neither an exceptionally early start nor an unstructured morning. It balances recovery, regularity and a realistic working day.
It is a common everyday alarm. A sleep plan can still help, especially if evening activities tend to run late.
The calculator shows options based on estimated 90-minute cycles and your selected sleep latency.
For many people it can be, when supported by regular sleep and morning daylight.
It may be an occasional fallback, but insufficient sleep should not become your everyday routine.
If you are choosing between alarms, compare nearby schedules. This helps you see whether shifting your wake-up time by 30–60 minutes gives you a better sleep window.