I have been using this futon for a month and I really enjoy it. Assembly was super easy. When you lay it down to sleep on it is very comfortable, however it is not flat. I am not sure how comfortable it would be for back sleepers, but it was perfect for my side sleeping. The futon came as 2 separate cushions that you attach together. There isn't much that attaches the two cushion so if you move the futon they move a little separately from each other. However, sitting and sleeping on it, it feels very sturdy.