Sleep Cycle is a simple time calculator that makes it easy to manage sleep cycles, so that you wake up well-rested. The calculations use findings from scientific studies that show the human brain sleeps in cycles, and that the end of each cycle is the best time to wake up at.
Sleep Cycle works in two modes:
- Fixed Wake-up: Allows you to set your desired time to wake up, and suggests the optimal times to go to sleep based on your input.
- Sleep Now: When you're feeling tired and want to go to bed right away, this mode will display the best times to set your alarm clock to, based on your device's current time.