I used to go about 36-45 hours of wakefulness all the time at my old job. Wake up, go to work, stay because there were things to do and staff I enjoyed working with and customers I enjoyed seeing, get nothing done, work through the night, sun comes up, "Oh wow, how convenient that I open the store today." then just keep on working till my shift ended around 6-8 that day.
Tim Horton's, nicotine, and a reason to be a wake.
's all I need.
I don't think I've ever gone over 45-48.
After a while, I just sorta get pissed off, decide "Fuck this." and go to bed.