I love to stay up late, :] Sadly, I don't do it much, I have to have a friend over or be really into what I am doing on the computer. I actually have stayed up for 24 hours, it was fun. n__n
I haven't done any research on sleep deprivation, I might go look that up now, being that it is 11:12 PM and I woke up at 10:00 AM.. I'm not that tired, Honestly... ^__^ Then Again, it's summer and I stay up late A LOT during the summer, even when I am alone. I just stay up and stay up until I realize I might actually have to get out of my pajama's and do something the next day, so I force myself to go to sleep.