Seriously, this is the part that was the worst for me. I spent 96 hours with only 4 hours sleep once in the army during an exercise. By the end of it there were gaps in my memory. To this day I dont know what happened during a certain part of the period even though in one instance I apparently drove a jeep several miles and for at least 20 minutes, at least 20, and didnt wake up until I came to a stop sign. I remember absolutely nothing about the drive, nothing about the route I took, nothing about what I did, nothing about what I passed. Thank God it was in the middle of the night when very few citizens where on the road. I had no reason to drive and was supposed to actually wait at a rendezvous point and instead apparently drove off on my "joy ride". The last thing I actually remember was sitting in the jeep waiting at the rendezvous point like I was supposed to do, then I "woke up" at the stop sign.
KR