I have a very comfortable Serta mattress but I have some hip issues from breaking it a few years ago in a care accident so I needed more support. We got this because of the topper/mattress cover in one and I couldn't be more pleased! It came in a very timely manner and now I feel like I can never go back! I will have a hard time sleeping with anything else. I will definitely recommend this to anyone looking for a memory foam topper.