Why is my screen turning on by itself?

[AC Question]

Recently the screen to my HTC one M8 has been randomly turning on by itself while I have not even been holding it. I've turned the phone off and on, I've taken off the case, I've taken off tempered glass I had on it, and the problem still exists. I didn't download any new apps for the phone today when it started.

 

[B. Diddy]

Welcome to Android Central! The HTC One's power button can get a little sensitive--is it turning on while in your pocket, or just sitting on the table without any disturbance?