Tempur Pedic mattresses are the coolest sleeping mattresses. They also will last the longest. They are expensive about $1,999-$9,000 in a queen set. However they are worth every penny and after all you do spend 1/3 of your day in your mattress! It is not memory foam it is Tempur material, nothing else feels like it or will give you the same support and pressure relief. It will change your life.