I stayed up the whole night once. Didn't wake up at all. I fell down in the middle of the road and my dad had to grab me out of the road right before i was about to get hit by the car. But i still go to sleep when i'm tired, So i don't know. Lol. But I'll never stay up the whole night again.
Actually, Me and my good Friends had a All-Night sleepover, but we didn't really sleep. So I fell asleep at the most awkward times. While I was eating breakfast, I laid my head down and fell asleep instantly. I was crawling up the stairs and I decided it was a good place for a nap. Then, I slept on the floor, because I was too tired to get into bed. I had all these weird impression marks and felt generally crappy.
Of course, this did happen around the age of nine or so.