I was once rear-ended by an idiot who fell asleep on the highway. Luckily, I was driving a pickup truck and I came out fine and so did the truck, despite being hit at 60 MPH! The other car on the other hand was a total wreck. Surprisingly, the other driver came out fine also. Talk about a bad wake call! Falling asleep while driving shouldn't be a habit! Usually it's a one time kind of deal. Sleep before you get behind the wheel, not while you're driving or operating heavy machinery of any kind.