Mattress prices can vary widely, and this is especially true for foam mattresses. There’s not one foolproof formula for how a mattress is priced; nevertheless, some factors are ordinarily involved in the final price of a memory foam mattress. 5 in our Best of Memory Foam Mattresses ratings, retails at $1,049 for a queen size, which is below the average foam mattress cost … In fact, in our rating of the Best Mattresses of 2020, the most expensive mattress and the second least … More memory foam thickness generally equates to a higher cost. The Layla Memory Foam Mattress, which is No. What Can Affect the Price of Memory Foam Beds? The total amount of memory foam. If you like the feel of memory foam, but need extra support, a hybrid foam mattress … The best memory foam mattresses for support and pain relief that you can buy in-store or online in a box, with options for stomach, back, and side sleepers. While hybrid mattresses are not strictly memory foam, many have memory foam comfort layers that are added onto an innerspring mattress for extra comfort and contouring. Not only does Zinus win for being the best cheap memory foam mattress we researched, but it’s also the top-rated memory foam mattress on Amazon, with an average score of 4.4 out of 5 … The density of the memory foam.