Sleep Cycle Calculator

What Time Should I go to Bed?

You’ve probably heard that you need to get at least eight hours of sleep per night to wake up refreshed. While it is important to get plenty of sleep, it doesn’t necessarily mean you will be more rested. The ideal time to go to bed at night depends on when you have to wake up the next morning. The Sleep Holic sleep cycle calculator tells you when you should go to bed to wake up refreshed.