Customer praise:
"It's so handy to think in terms of sleep cycles rather than hours" -- A.T.
"Getting the right amount of sleep has improved my health" -- D.S.
"...very attractive. It is very simple and the updates you have made to it over time have made it better." -- M.S.

Ever wonder why you sometimes wake up groggy, even if you have more sleep?

The reason: you've woken up in between your sleep cycles.

We all have multiple sleep cycles a night, and waking up during one will leave you feeling groggy and tired. Waking up between two separate ones, however leaves you waking up feeling refreshed, even if you've had less hours of total sleep.


* Counts in sleep cycles to calculate:
- Time to sleep, based on desired wake time
- Time to wake, based on desired sleep time

* This version includes:
- Age group optimization
- Customize how long it takes to fall asleep
- Able to set an alarm, via in-app purchase
- Multiple themes to make it easy on the eyes
- Multiple wake-up sounds


DESCRIPTION:

By counting in sleep cycles and incorporating how long it takes for you to fall asleep, this Sleep Cycle determines when you should sleep and when you should wake up based on the average human sleep cycle. Humans naturally have multiple sleep cycles every night and it's during these sleep cycles that we are truly resting.

If we wake up in the middle of one of these cycles, we will feel groggy and much more tired than normal because we have interrupted an important process. However, if we we wake up in between two sleep cycles, we will feel far more refreshed even if we've had less sleep. This is because humans naturally wake up in between sleep cycles, provided we aren't disturbed by things like alarm clocks and other loud noises.