I was thinking of getting one for my theater room, I figured it would be comfortable for my guests to sit on while watching a movie. A friend of mine has one, and it's quite comfy whenever i'm at his house. I was thinking of retiring my old bed anyway, how are futon's to sleep on, are they comfortable? I know that they usually only come with one 6" thick mattress, but I figured if I get 2 mattresse's it shouldn't be so bad. Any input?