Ideal Bedtime Calculator
A good night's sleep consists of 5-6 full sleep cycles, which last about 90 minutes each. Waking up at the end of a cycle, rather than in the middle of one, helps you feel more rested and alert.
1. Enter Your Wake-up Time:Select the time you need to wake up in the morning.
2. Calculate Your Bedtime:The calculator will suggest several bedtimes. Each one is calculated to allow you to complete a full number of sleep cycles. The times in green are recommended for a full night's rest (7.5 to 9 hours).
The calculation includes an average of 15 minutes for you to fall asleep.
This tool provides an estimate based on averages. Individual sleep cycles and the time it takes to fall asleep can vary. This is not medical advice. If you have persistent sleep issues, please consult a healthcare professional.
Find the best time to go to bed to wake up refreshed.
You should try to go to bed at one of the following times:
A good night's sleep consists of 5-6 full sleep cycles.