I wake up at 5 or 5:30 AM every morning. My body seems to have an internal alarm clock. So..... Christmas day will probably be no different in that aspect than any other day. Just more fun.
We're early birds, christmas or not. So it plays out like our Sunday's. We awake between 7-8, breakfast by 9... I used to get up at 6, excited, and pass time watching Nickelodeon or playing PS2/N64