I've never done all nighters but I've gone to school on about half an hour of sleep on regular occations. Do that for a month or two and you feel that the world is three steps ahead of you all the time. I remeber after I finished collage and I hung out with my freinds they were surprised how diffrent I was from all the sleep I was getting. Food really helps keep you awake. eat like half a sandwitch ever hour and drink alot of water you can go for days like that with out any problems. I do that when I'm working on film's and we do like 18 hour days for like five days a week, really helps.