SmartSurface with MicroSupport® Gel combines three technologies at the sleep surface. Cool Balance® fabric technology helps regulate temperature swings and anti-microbial BodyLoft® fiber provides cushioning. MicroSupport® gel is infused into Serta&Reg; Latex Foam to provide an extra level of comfort and support. Cool Twist liquid gel memory foam designed to move heat away from body Promotes proper back support and undisturbed sleep BestEdge® foam encasement prevents roll-off or sag at mattress edges Size: Full Set includes: Mattress, foundation Construction: Super pillowtop Support: Firm Materials: Cool balance fabric, micro support gel, anti-microbial body loft fiber, cool twist gel memory foam, duo sense coil support Official Mattress of National Sleep Foundation Meets all federally mandated flammability standards Mattress set: 22 inches high x 53 inches wide x 74.5 inches long Mattress: 13 inches high x 53 inches wide x 74.5 inches long Foundation: 9 inches high or low profile 6 inches high x 53 inches wide x 74.5 inches long White glove home deliveries require 4-hour window to complete delivery; this includes delivery of mattress, set-up in room of choice, removal of all packaging and debris and removal of old mattress upon request. Please note that there is no surcharge for additional flights of stairs. You will be contacted by the home delivery agent when the product is ready for delivery (typically 1 to 3 weeks), we recommend requesting product removal at the same time you schedule your home delivery appointment. 30-Day Comfort Guarantee - If you not satisfied with purchase within 30 days, you may return your order for a refund less a re-stocking fee. After 30 days, mattress cannot be returned.