What time do you want to wake up?
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Find the best times to go to bed for quality sleep
If you want to go to bed now...
Find the best times to wake up if you sleep now
How Does the Sleep Calculator Work?
Our sleep calculator is based on the scientific principle of 90-minute sleep cycles. During sleep, your body goes through multiple cycles of REM (Rapid Eye Movement) and non-REM sleep stages. Each complete cycle lasts approximately 90 minutes.
Why 90-Minute Sleep Cycles Matter
- Natural wake-up: Waking up at the end of a cycle helps you feel more refreshed
- Avoid sleep inertia: Waking up mid-cycle can leave you feeling groggy
- Better sleep quality: Aligning with natural rhythms improves overall rest
- Consistent schedule: Regular sleep cycles help regulate your body clock
Tips for Better Sleep
- Maintain a consistent sleep schedule every day
- Create a relaxing bedtime routine
- Keep your bedroom cool, dark, and quiet
- Avoid screens and caffeine before bedtime
- Get natural sunlight exposure during the day