It's amazing how sleep-deprived I am. I think that ever since third grade, when I had a brother who was in junior high, I started going to sleep really late. My little brother recently told me that I was a zombie going through high school. All I did was study and go through the motions. Maybe that was true! I stayed up late nights "studying" and writing papers. And it was the same in college as well. I scheduled my classes so that I could wake up late. Even then, many a class did I miss! And now that I'm a teacher, I'm dying. I sleep about 5 to 6 hours a night. But, my optimal number of hours is 8. That means I'm in debt about 12 hours per week. And it keeps adding up. I wish I were an engineer, just lilke my husband!