Originally Posted By: ls1mike
I think it depends on the person. I spent time in the Army and the Navy and I have been awake on a Submarine for at least 4 days straight before, but I was young and in good shape. Didn't change the fact that I was super tired. It certainly affects your ability to do everything and everything becomes funny.
Yeah, you definitely get "punchy" and there is some spatial and auditory disorientation IME.
I don't think I could do the multiple days without sleep functionally now. Like you I was younger, more fit, and hardcore at the time on getting the job (s) done. My calculations wrre all still correct even with all the physical & mental fatigue.