About 40 hours

try cellucor D4

my cousin and I had a challange when we were younger.. 3-4 nights of missed sleep. it was really hard, we both gave in and said fuck this..

nowdays I cannot miss a night of sleep.. if I do the next day ill just pass out, but I only need like 3hrs and i am good

40 - 48 hrs.. If I can remember correctly.

about 2 days then I had to fly not fun.

I never sleep because when I lay down and close my eyes, I spend all night wide awake in the dream world.

Must be the cocaine.:2 cents:

Probably 48 hours, maximum. Anything over and you'll be hallucinating.

about 44 hours while working on a nuclear warhead.

Yeah probably in the 36 hour range or so...

The guy who posted above that he stayed up for 60 hours is an ANIMAL haha!!!

Don't remember...