What is the difference between Tempur Pedic and other Memory foam mattresses?
A Tempur-Pedic mattress is generally eight inches thick and has two layers. The top layer is composed of three inches of a 5.3lb visco-elastic foam that has a listed ILD rating of 14. The bottom layer of the mattress is composed of 5 inches of 3.5lb non visco-elastic high density polyurethane. It has a cover that is composed of a soft, cotton-like material over a plastic-like material. The advantage of the plastic-like material under the cotton material is that it offers a water proofing for the foam below, the disadvantage would be less breathable and more difficult to wash.
