How do you sleep?

According to this website, my sleeping position (sprawled out flat on my stomach) is the most rare, and it implies that I have a "brash and gregarious" personality. I'll admit the brash, but I'm not so sure that locking yourself in your apartment for days at a time to play Gamecube and watch Tivo really counts as gregarious.

http://www.cnn.com/2003/TECH/science/09/16/sleep.personality.reut/index.html