The Sleepy Bars app will generate constant floating bars with alternate colors and directions.
By looking at the screen for a couple minutes, you are guaranteed to feel sleepy instead for being held awake by most other apps.
To use the app simply click anywhere on the screen to enable navigation bar. Then click on the settings gear icon to custom your favorite sleepy bars.
It comes with options of white noise and rain sound to assist sleeping.
You can also set notifications to help you sleep at consistent time.
In the long term you will have better sleep quality and healthier life!