You can buy 5" foam on eBay pretty reasonable, and replace the foam your self, it can be cut with a serrated bread knife. I made a mistake and got 4 inch because the cushions had collapsed so much, then I found out it was 5", started with the medium firm, which I would recommend, but the wife decided she wanted the firm, so we got the 5" firm as she sleeps on the dinette bed, was still cheaper than having someone else do it. I haven't decided what to do with the couch but think I will convert it to a full time single bed. At our ages crawling over one or the other to go to the bath room at night is out of the question.