I used to see the sleep number bed commercials all of the time. When my mattress started to make my back hurt, I thought I would shop around. I also knew a couple of people that bought a sleep number bed and I asked them about it. I decided to go to the mattress store and laid on several mattresses for a while. When I got to the sleep number bed, the salesman adjusted the bed until it was at my comfort level. I couldn't believe how good I felt laying down in that bed. I stayed there for 20 minutes and didn't want to leave. I waited about a week, came back to the store....laid down and had the...