ABOUT THE COLLECTION:The Probreeze 2.0 collection features SmartClimate® and PURE COOL® technology to keep you cool and comfortable night after night. View all mattresses in the ProBreeze 2.0 collection. QUILTING LAYER:The patented removable, machine-washable cover that is cool-to-the touch and draws heat away from the body, thanks to the heat absorbing fibers, for cooling comfort. Materials: SmartClimate® Cover COMFORT LAYER:The patented removable, machine-washable cover that is cool-to-the touch and draws heat away from the body, thanks to the heat absorbing fibers, for cooling comfort. Materials: Heat-Diffusing Layer Pure Cool® Plus Material - 1.5" SUPPORT DETAILS:One-of-a-kind Tempur-Pedic® pressure-relieving and cooling materials to deliver the right combination of pressure relief and support. Materials: Ventilated Advanced Relief® Material - 2" BOX SPRING:Engineered to support your Tempur-Pedic® mattress, and upholstered in matching grey fabric, with a perfectly solid, flat surface at a height that's right for you. Materials: MDF boards