I LOVE my iPad 4. It's my first iPad. Had it since the day it released but this week I started noticing it occasionally turns itself off (just to sleep, not all the way off) when I'm NOT pushing the "sleep" button. Not a big problem or anything, just weird. Seems to happen when I'm handling the bezel, so at first I thought it was a sensor thing like the phone, but I don't think the Pad has a sensor like that.. anyone else?