Are you using a "screen off" app such as "Screen off","Screen Off and Lock", or others? YES! these apps saved powerbutton!
But, how about wakeup/unlock screen? using powerbutton? or using another physical key by change keymap at rooted device?
Now! this app, "Screen On" allows you to use any physical keys to wake up your device screen, save your powerbutton! and the device NOT need rooted!
How to use:
1.install this app to device
2.reboot your device or start this app and click "Start Service" button