When i was young and lived at home with my parents i rarely slept in my room. Now though once i get the kids to bed and everything finished I hit the bed. Plus if I fall asleep on the couch my wife wakes me up most of the time. I sleep sprawled out so the couch isnt enough room for me. The only way i can keep comfortable enough to sleep on it is if I put my leg up on the back of the couch. Looks pretty awkward.
On a side note, one of my long time buddies sleeps on the floor. Everynight. He has a bed, chair and couches but prefers the floor. Since we were 12 up until now he still sleeps with 1 pillow and 1 blanket on the floor fully dressed. So freakin weird.