Find the best time to sleep and wake up
Choose your time and sleep cycles, then click Calculate.
| Cycles | Sleep |
|---|---|
| 4 cycles | 6 hours |
| 5 cycles | 7.5 hours |
| 6 cycles | 9 hours |
A typical sleep cycle is often described as lasting about 90 minutes, although actual cycle length varies between people and across the night. This calculator uses 90-minute cycles as a simple planning estimate.
ⓘ Note: This calculator is for general information. Individual sleep needs and timing can vary.