A great mattress, with just the right level of firmness. Its definitely not orthopaedic, but its supportive while still being soft enough to be comfortable.Apparently its got a memory foam layer. I personally dont like memory foam, since I like firm mattresses, but this one feels great. I presume the memory foam layer is what takes the edge off the firmness.I dont think Ive ever written firm so many times in one paragraph.tl;dr Its great. Theres no "roll-together" for me and the wife. It even looks pretty good when uncovered.