Look to this luxe topper to completely transform your mattress, without replacing it. This 4” topper features SealyChill Gel-Infused Memory Foam – a combination of gel and conforming memory foam which helps provide adaptive comfort and support. The premium memory foam adapts to your unique shape for personalized comfort, while the gel infusion promotes a cooler sleep experience. The 1” pillow top down-alternative cover pairs with 3” of responsive gel-infused memory foam for the ultimate cushioned comfort. Plus, you can rest assured knowing this memory foam has been CertiPUR-US certified – meaning it is made without ozone-depleting chemicals. Topper comes conveniently compressed and packaged for easy transport and set up. Simply unbox, unroll and unwind.