Optimize your sleep and wake up refreshed by aligning with your natural sleep cycles
Optimal Wake-up Time
07:00 AM
Recommended Sleep Duration
8 hours
5 sleep cycles (7.5 hrs)
06:30 AM
6 sleep cycles (9 hrs)
08:00 AM
Uses proven 90-minute sleep cycle theory to determine optimal wake times for feeling refreshed.
Works perfectly on all devices – desktop, tablet, and mobile phones with fullscreen support.
Takes into account your sleep quality and age group for tailored recommendations.
Suggests multiple wake-up options based on complete sleep cycles.
See your sleep stages graphically represented for better understanding.
Designed to work seamlessly on Blogger without interfering with your site.
Sleep occurs in cycles of approximately 90 minutes each. Each cycle consists of different stages including light sleep, deep sleep, and REM (rapid eye movement) sleep.
Waking up at the end of a complete sleep cycle (during light sleep) helps you feel more refreshed and alert, even if you’ve slept for a shorter time. Our calculator helps you find these optimal wake-up points.