Why is my tablet awake when the screen is off?

[AC Question]

Battery dies really quickly when "sleeping" when checking detailed battery into it says that my tablet is "awake" even though the screen is off. I have screenshots of the data...

 

[Stephan Larsson]

This is what it looks like (I am the 'OP')

 

[Rukbat]

Some app(s) is keeping it awake most of the time. Install Wakelock Detector to find out which one it is. (If the phone isn't rooted, see Wakelock detector with non-rooted phone.)

If it's an app you want to be able to run, but not allow to run when it wants, install Greenify and Greenify the app. (That kind of freezes it until you run it.)