Terry and John, it's not that bad when you make time for stops to get out and walk around to get the blood flowing. Stretching out helps as well and of course Red Bull(tastes like crap but it works) helps a LOT. It's best to get out and do something as opposed to trying to drive like a bat out of hell to get home. About 8 years ago we were driving west on I-70 through Indiana, my singer was driving, drummer was in passenger seat and I'm in the back. We hit a patch of black ice and it sent us in a 360o spin which we fortunately recovered out of and no one was hit. But that had nothing to do with any sleep deprivation. wooooooooooooo what a ride!!!