On school nights, the app would alert you if it was midnight and you were still using your phone to go to sleep. The app would put a limitation on your phone to where you can not be on the internet, text, or call past midnight.
The Go To Sleep App is FREE! (for the non-pro version)
Where to 'buy' the app & why the app is needed:
-Buy the product in your phone's app store
-Would remind you that it's late and you need sleep for school