Longest you ever stayed up?

Probably 33 hours here.

Mm, I think it was around 30ish Hours

9238478934578934578934598346589346598346589348957890345789347589347589037589347589 hours.

"9238478934578934578934598346589346598346589348957890345789347589347589037589347589 hours."

31 hours I think.

Probably around 20 hours.

Around 36 hours.

Probably about 30 hours after a long flight.

I stayed up for about 40 hours once.

Yeah, 30 something.

around 33 hours.  I remember staying up from 8 AM to 5 PM the following day.  It was my first day of senior year in high school.  I made a great first impression on the teachers.

OVER NINE FUCKING THOUSAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAND.

During college I did a few 50+ hours stretches due to some big projects.

"Probably 33 hours here."

28 hours.

Around 30 hours, nothing too crazy here

3 days in a row is my longest I believe.

Something like 26 or 27 hours. I've only pulled an all-nighter once. Thanks, World of Warcraft!

lol at my first comment.  The longest I've stayed up would probably be around 35 I think.  I've only done that a few times in my life.

Probably a day or so, but I know I could go longer than that. Last time I did an all-nighter (a very, very, very long time ago), I felt great by the time morning hit. I have a feeling I will shatter my record easily when Diablo III lands in my hands.

...Oh, no. Damn you Blizzard.

I like to take power naps every 6 hours.

37 hours is my record.

Thirty-ish.

About 100 hours; 4 days straight.

"About 100 hours; 4 days straight."

I've never really gone out of my way to time it I reckon about 40 at most. I dont like avoiding sleep, over nighters are way over rated.  

33 hours.
I put a pizza in the oven, sat down and then woke up 6 hours later with a horrible smell coming from the kitchen >_<;

3days straight in a study frenzie or 72hrs if you like.  The older you get the less sleep you need.

37 hours. I then slept for 17.

Not long. Probably around 20 hours.

"37 hours. I then slept for 17.

Which is where I derived my Grand Theory on Required Sleep.

Sleep=Time awake/2

"

41 hours or so. Took a flight to London, and got there at 6 AM, then stayed up until around 11 PM. That was probably the worst day of my life. Big Ben kept changing colours.

24 hours

40 hours. then slept most of the next day

"9238478934578934578934598346589346598346589348957890345789347589347589037589347589 hours."

"Arkthemaniac said:

"37 hours. I then slept for 17.

Which is where I derived my Grand Theory on Required Sleep.

Sleep=Time awake/2

"

You don't sleep for 17 hours. You go into a coma."

After a red-eye flight it was something like 2 or 3 hours of sleep in 55.

Without travel it is probably around 30 hours.

I don't sleep motherfucker for one whole week,
Did lots of crank and killed all rocks.

Too bad afterwards I woke up in the hospital; turns out you need to sleep.

26 hours maybe, I don't really know but I have stayed up all night many many times

46 hours.
Then woke up at 6:50 the next morning for school.

Close to 30 hours. Pulled an all Nighter without realizing i had to work the next day... Then i was asked to stay till midnight and stupidly said yes.

somewhere around the 30 hours mark also.  Then i decided to play FEAR in the dark. 

Fun fact for everyone; theres a part of the SAS training that requires you to stay awake for 125 hours!  Now try and play COD4.  :D

around 40

One time i stayed up to 1230......AM!! It was so rad

I used to regularly go to 24 hour sci-fi film marathons back in the 80s (you have to see Buckaroo Banzai Adventures Across the 8th Dimension on the big screen to truly understand its genius), so on each of them, I would go  about 40+ hours without sleep.  It was worth it.

36 hour Diablo 2 session.

Close to 24 hours, i just get too sleepy, cant even stand up.

well, I wouldn't recommend it EVER even with energy drinks, but about 35-38 hours