How long can you stay without sleeping !??

Probably not very long. It really is not healthy to try to stay awake for days at a time. It can really be deadly. I would recommend not doing this just because you have a high tolerance. Anyway, I did not sleep most all night last night so I will most likely sleep well tonight. At least I hope so.

With out sleeping .... it was my worst experience .... we had to saty awake for 3 days almost 72 hours ... we had breaks in between but never was given permission in our militiary training program in college !!

I had experience this one time and I didn't do it again, I stayed about 40 hour continuously. But I had to sleep after those 15 hours to compensate.

I don't think I've ever stayed awake more than, say, 24 hours... I'm the sleepy kind of person and when I lose even one night of sleep,my whole methabolism is messed up and it takes me a long long time to get back to normal. My boyfriend was a real "champion" a few years ago. He was working as a taxi driver and he had times when he wouldn't get any sleep for even 3 days and 3 nights. Only him and I know what he had been going through and thanks God those days have passed and will never come back.