My internal clock is messed up....Normal night is bed at 10 or 11 ish and up at 5:30. past two weeks its been bed at 9-10ish and up at 4! ive tried staying up till 11 but still waking at 4. anyone have similar issues? I sleep fine, its just i am waking at 4AM then tired by 9. Maybe the upcoming time change will fix it??