[AgentZero]

Current record, 153 hours, or 6 days and 9 hours. I did it in university to win a bet that it wasn't humanly possible to not sleep for five days. Course, our Psychology department found out about it and asked if they could use me for a sleep-deprivation study. So, not only did I win the bet but the Psych department paid me as well.
BTW, this is NOT a feat I recomend trying to duplicate. Not sleeping for that long screws you up big time, and not just in the head. I was constantly getting bloody noses, bruised fingers just from typing and doing pretty much anything was very painful. Though the stuff that goes on in your head is pretty weird too. I remember the experiment/bet started at noon on Sunday and finished at 9pm the following Saturday. I'd won the bet by noon Friday, by noon Saturday I'd proved how bloody stubborn I could be, but then my mind was so addled I didn't go to bed until 9 because I didn't want to disrupt my sleeping patterns for the following week. Ended up waking up early Tuesday morning.