Something like 36 hours a couple times, once largely for shits and giggles fueled by mountain dew and roleplaying games, once a couple years later at a rave (back when the were still vaguely cool...) fueled by mdma. Then i played paintball while still off in lalaland, that was very intense and entertaining.
These days i don't even try, most i've gone recently is 20 hours or so and that was rough.
Having kids has changed things, i haven't gotten what i consider to be a decent nights sleep more then two nights in a row in the last eight months, and back to back decent sleeps are rare, once every couple months.
