Read your schedule Manic......have no idea how you can do 2 12 hr shifts on only 1.5 hrs sleep. I have to admit....I end up going a few days without sleep & only dozing at the computer, but I am NOT WORKING & when my body crashes, I can just lay down on my bed & sleep for 24 hours (& I'm NOT BP).....just hate the nightmares that hit at times & think I avoid sleep when that happens. But I couldn't drive that long without sleep without crashing off the road.

When I was in college, I worked the 12 hour night shift at a computer company doing data entry.......then I became a computer design engineer & worked many 70 hour weeks & longer hours than just those 12 hour night shifts. Would drive the hour drive home after work & the Ca Highway Patrol would constantly pull me over for weaving.....at least those little red lights usually woke me up for the rest of the drive home.