The longest I have stayed awake was:
Saturday: 7a.m. till Monady: 3 a.m.= 44 hours
Yeah, so I just couldn't fall asleep one Saturday night and I had to get up for work at 4 am on Sunday, so I never did sleep that night. I stayed up studying and doing homework Sunday night and I ended up falling asleep at like 3 a.m.

This was like 2 years ago.
How about you?