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 the night and 20 minutes during the day (3 variants)
Segmented (2 variants)
Dual-Core Sleep (4 variants)
Triphasic (2 variants)
Everyman — 1.5-3.5 hours during the night and 20 minutes during the day for 3 times (3 variants)
Dymaxion — 30 minutes for 4 times a day (2 variants)
Uberman — 20 minutes for 6 times a day
Tesla — 20 minutes for 4 time a day

// Option A //

To download Polyphasic Sleep mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Polyphasic Sleep mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Polyphasic Sleep from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Polyphasic Sleep in HappyMod App.