Lastnight, as always I went to bed, put my phone in Airplaine mode(I don't want any buzzing emails) and made sure everything was off, then hit the sleep button. This morning, I slept in... not by choice. Something completely killed my battery. So I wonder what caused the drain? Also noticed that this morning all my icons on the home row were reset to default and all apps were moved to a default like setting. Also my sound preferences were reset and my lock code was cleared.