Experience the most premium comfort and restorative sleep with the Iona 13’’ mattress. Cushion firm support is perfect for all sleep positions. The 5 ZoneResponse foam design promotes full-body spinal alignment for comfort and support where you need it most, featuring help from even more premium layers that contour and cradle your body. An inch of graphite-infused Perfect Conform memory foam ensures optimal pressure relief while redistributing heat. The CoolFeel fabric on top keeps you at a comfortable temperature throughout the night. Enjoy a dynamic combination of cooling gel and premium memory foam in a pressure-relieving embrace with EverCool Fuze. Made with eco-friendly CertiPUR-US foam that meets rigorous standards for emissions, content, and durability. Mattress protector recommended. Compatible with adjustable bases.