We are debating on if we should have my parents spend two nights with us on the pull out sofa and then switch to a two bedroom on the third night to save on our points. But I am not sure how comfortable the pull out sofa is? My mom is a very petit woman but my dad is larger man. Of course my dad can sleep on just about anything you drop him on. My main concern is that the pull out would have a very thin mattress that you could feel the springs. Anyone have any input on them?