Just over 51 hours, just to see how long I could last. Massive amounts of coffee and pixie stix.
Long, long ago, when I was actually young, I was up and awake for some 40 hours because my dad had suffered a stroke and was in the hospital and in critical condition. The next day I was scheduled to take a college final exam. What I found, to my great surprise, was that I seemed to have a virtual photographic memory of all the pages of text I had studied. I took the exam and left knowing I had done very well, indeed. As it turned out, I got the highest grade ever on that exam! But, by the time I'd left the exam room, and after I'd chatted with a few friends, I was startled to realize that I had forgotten where I'd parked my car.
48 Hours, Hangar Deck, USS Independence CV-62, 1983
It took three days to get over it. It really screwed me up...I was operating a critical piece of machinery at a construction project...On my feet the entire time and drove home, about 70 miles...I did not make it. I stopped at a rest area and slept for 6 hours before continuing.
Never forgot it....Never did it again, nor will ever do it...
36 hours, driving across country. Hallucinating by the time I pulled over and fell asleep.