SleepyTime: Bedtime Calculator 2.4.1

Nothing is more important than getting a good night’s sleep, and waking up in a good shape let you make the most of your day! SleepyTime is an app designed to help you wake up in-between sleep cycles and allows you to start the day with a clear mind.
nEvery time you sleep, you enter into a series of sleep cycles that last for around 90 minutes, but even if you seem to get plenty of hours of sleep, waking up during one of the cycles can make you feel groggy and exhausted.