I'm always saying this but memory foam mattresses are sent from heaven! I've never had a single ache or pain since we got ours. In fact ours isn't even a full mattress it's just a very deep mattress topper.
We did this a year ago with the children, who were keen to try dunlopillo mattresses which we had as children. They love them, and the pillows too. Being reminded of the experience we've also switched. Great for support and avoids problems that come with some other materials. We saw other similar brands of latex mattresses/ toppers too during our search then.