If you are a fan of memory foam and want everything to be set up at once, the Zinus Sleep master is among the best choices for you, especially for side sleepers. It comes at a very affordable price, just a bit higher than the Dreamfoam. But if you take into account the bed frame and headboard that are also attached to the mattress as a pack, you will see that the price is incredibly reasonable! You would find no other cheaper ones. The material of the mattress is memory foam. It is sensitive to pressure and can adjust well to every edge and curve of your body on aside. There are two layers of foam. One 1.5 inch memory foam on the top and 4.5-inch base support foam. The base foam has higher density and therefore provides stronger support for the whole mattress. More worth-noting is that it is made from foam, the latest version of memory foam. The conventional petroleum compounds in the older versions are replaced by natural plant oil. This will give you the most refreshing sleep all the time. The foams are also undergone CertiPUR-US testing for qualified content, performance, and durability.