This Contour Plush mattress features a durable high density 9” foam core with a layer of 2” Serene® foam. Over the Serene® foam comfort top layer is 1” of Aurora® foam. Aurora® foam incrementally dissipates heat and wicks away trapped heat that otherwise cause discomfort. Aurora® combined with Serene® creates the perfect sleep surface. Now you can enjoy a mattress that is never too firm or too soft. Serene® along with a top layer of our new Aurora® Foam gives you a plush yet supportive feel. All of our foams are on the cutting edge of the latest research and technology.