Sleep Cycle Calculator
Scientifically plan sleep and wake times based on sleep cycles
Hour Quality Tools
Sleep Planning
Scientifically plan your sleep time based on sleep cycles
About Sleep Cycles
A sleep cycle refers to the different stages a person goes through during sleep, with each complete cycle lasting about 90 minutes. Waking up at the end of a sleep cycle will make you feel more refreshed and energized.
- A complete sleep cycle includes light sleep, deep sleep, and REM (Rapid Eye Movement) sleep
- Adults are recommended to get 5-6 complete sleep cycles per night (7.5-9 hours)
- Waking up between sleep cycles is easier than waking up in the middle of a cycle
www.moodji.net
About this tool
What is Sleep Cycle Calculator?
Estimates ideal bedtimes and wake times based on roughly 90-minute sleep cycles.
What is it for?
Wake during light sleep so you feel less groggy in the morning.
How to read your result
Pick the recommended time that fits your schedule best.