I'm new to all this. I do enjoy the features of the phone tho!
Usually I hold down the, "Power Off" button on the screen at night to shut the phone off. Most often than not about five minutes later, I heard it powering back up.
Last night I went out and checked to see what it was actually doing and found it was trying to "maybe" sync with Photo Bucket because it had the User ID and Password box up for that.
I do have an alarm set for 4 pm during the week but I wouldn't think that could have anything to do with it.
Checked on all the media sharing setting and I have nothing there I can see that would cause this action to occur.