So, for the last three years, I've learnt how to stay awake for 48 hours at a stretch (last minute before deadlines, anyone? Before that, I can only ever recall doing it once or twice, though a few times on 25h flights (UK > NZ), I'd gone 48 hours without more than an hour or so's sleep.
Does anyone else do it often? Deliberately? Do you have a technique? Why? What's your record?
My record is about 60-65 or so hours, but that was horrifying - by the time body gave up on being awake I was falling asleep mid-sentence, my body felt like a ragdoll and my eyes were red raw. If I need to perform like that, I try to get at least 4 hours sleep a night, you can just about perform normally, but 10 hours sleep over a 4 day period is actually quite enlightening of just how much of the world you see - it's wonderful to see sunrise and sunset every single day.