This Cocoon Firm mattress by Sealy features a Premium stretch-knit fabric cover that is breathable and durable with a soft feel, a layer of PerfectFit memory foam that adapts to your body size, shape, and sleep position to ensure a great sleep, a personalized comfort layer, and essential support foam engineered to be highly durable and resilient. This mattress will bring all the support and comfort you need to get a goodnight sleep.