Beautiful Belgian Damask Plush Top Cover Material: This beautifully designed plush top cover material offers incredible comfort. 3-Zone Convoluted 1.5" Foam (Air Only): Manufactured with extra-thick, high-density polyurethane, convoluted foam. Formed with a unique combination of 3 distinctive zones to reduce stress on the pressure points & provide customized support for your entire body. Each partner has the freedom to customize their individual side! The Air Support System can be made as SOFT or as FIRM as you or your partner prefer with the touch of a button. This Mattress Meets All Consumer Products Safety Commission Standards. The Evolution Bed is an excellent value and offers a plush design low profiletop that is removable and refreshable.