Luxuriously plush, the Purple Hybrid Premier 4 mattress immerses you in deep, dreamy comfort. Made with Hyper-Elastic Polymer, Purple's patented 4" Smart Comfort Grid delivers targeted support to every area of your body. Its dynamic construction is designed to flex under pressure, offering cradling comfort with full support. The Purple Grid geometry is temperature neutral with open air channels so your mattress stays the same temperature. Foam-encased individually wrapped coils incorporate motion isolation to provide ease of movement and prevent partner disturbance. Hypoallergenic and non-toxic, you can sleep knowing this mattress is built with safe, high-quality materials. A breathable SoftFlex cover couples with 30% more Purple material than the Purple Hybrid Premier 3, giving this bed maximum "float." A head up adjustable base takes your experience to a new level! Easily adjust the head of your mattress with a remote to stay comfortable while reading or watching TV in bed. 10 Year Limited Warranty