We struggled to find a convertible couch that would closely match a full size bed in width and length and while this is still a bit smaller than a full size it is the closest we could find.  I find the build to be a bit cheap and flimsy but I think it will do for a guest room.  I have two 4-week long house guests and they found the need to use a memory foam mattress topper on this for sleeping as well as an extra blanket under that in order to fill the folding seam between the sofa back and seat.  We have not yet used it as a sofa but will next week when the guests have returned home.