There are couple of things that I can do continuously without getting tired, driving and playing poker. I've stayed awake for over 36 hours plenty of times in my life, two weeks ago I went 70 hours without sleep and I wasn't even trying. So for me fatigue wouldn't be a factor and I think it would actually help me out because my drop off in play wouldn't be as drastic as other players. My biggest concern would be losing patience, but I would love to play in an event like that.
