The most valuable resource in the modern world is time, a third of which we spend on sleeping. However, you can increase your awake time up to 22 hours by sleeping more than once a day at regular intervals. This kind of sleep is called polyphasic sleep. This app allows you to choose from different polyphasic sleep schedules. After that it will remind you when it's time to go to sleep, and, of course, will wake you up on time. Sleep schedules you can choose from: Biphasic — 5-7 hours during t