A prime example of a mattress where the structure plays a role in comfort and lifespan is the Beautyrest World Class Carmel Pillowtop mattress. A 20-year-old mattress gives an opportunity to study the materials used and procedures involved in an earlier model of the goods of Beautyrest. Upon investigation of the Beautyrest World Class Carmel Pillowtop mattress, it is apparent that it is constructed of fire-resistant fiber, convoluted foam, memory foam, and a pocketed coil sup