there is the memory foam and then there is latex.
We got new beds last year.(twins) Put them together to make a king. Mine is an adjustable one. (Englander made it.) I love that matress. Very happy with it. The husband picked his out as he likes a firm bed, his has the cupping in the middle looks like he is sleeping in a sling. He doesn't complain but for the money it shouldn't do that.
Good luck.