BESTUTILS
Sleep Calculator
Find your perfect bedtime and wake time based on natural sleep cycles. Wake up refreshed by timing your sleep to complete 90-minute cycles.
Find Wake Time
I want to sleep at a specific time
Find Bedtime
I need to wake up at a specific time
About Sleep Calculator
Our Sleep Calculator helps you determine the optimal bedtime and wake time based on natural sleep cycles. Each sleep cycle lasts approximately 90 minutes, and waking up at the end of a cycle helps you feel more refreshed.
The calculator accounts for the average 15 minutes it takes to fall asleep and provides multiple wake-up time options based on completing 4, 5, or 6 sleep cycles.
How to Use
For Wake Time Calculator:
- Enter your desired bedtime
- Click "Calculate Wake Times"
- Choose from suggested wake times
For Bedtime Calculator:
- Enter your required wake time
- Click "Calculate Bedtimes"
- Choose from suggested bedtimes
Sleep Cycle Facts
90min
Average sleep cycle duration
4-6
Recommended cycles per night
15min
Average time to fall asleep
7-9h
Recommended sleep for adults
Sleep Tips for Better Rest
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