This 12" mattress has a tight top and low motion transfer, so it's designed to let you stay asleep, even if your partner tosses and turns. Its layers of memory foam have a medium firmness, a breathable design, and moisture-wicking properties to help keep you cool while you sleep. This mattress includes a breathable quilted fabric cover to retain mattress freshness. It arrives conveniently packed in a box and is backed by a 5-year manufacturer's warranty.