Can anyone explain Wakelock Detector app results?

[Stav Edgar]

My phone (galaxy s4) has a terrible battery life (goes from 100% to 40% or worse overnight with no use). I saw some forums suggested downloading Wakelock Detector to see what was going on, so I did, but have no idea how to use the results to improve the battery life.
Appreciate any help, thanks
Here are screenshots of it:

 

[B. Diddy]

Duplicate, see responses here: http://forums.androidcentral.com/an...xplain-wakelock-detector-app.html#post5145021. Thread closed to prevent parallel discussions.