The base layer is the 6-inch air chamber.This supportive foam helps to keep the body aligned and separates the foams from the air chamber beneath. The second layer is 3 inches of Ergonomexâ�¢.This layer fosters pressure relief and surface comfort. The first layer is 2 inches of responsive Coolgenex â�¢ foam, infused with gel to help with cooling.This plush, textured material covers 11 inches of bedding beneath, with 5 inches of a zoned foam comfort layer on top of a 6-inch air chamber. The cover is of European style and is constructed with a blend of polyester, polypropylene, and elastane fibers. The mattress comes in several boxes that can be stored and set up by the customer at a later date if they are not immediately ready for installation. Construction: What’s Inside Sleep Number 360 p6 Smart Bed?Ī team can hand deliver and install the 360 p6 to your home and remove your old mattress if you choose an additional $199 fee.