What's the longest you've gone without sleep?

[Vampyr]

I think around 72 hours...it may have actually been between 48 and 72, but it was close to three days.

I was on a school trip to Cedar Point. After spending the day at the park, we went to the hotel, stayed up all night, then the next day we went out on the Lake, came back to the hotel, watched a movie, and then stayed up all night.