As cool as the other side of the pillow, the Sealy Canterbury Court hybrid firm twin XL mattress is the most premium hybrid in the Posturepedic® Collection. It features upgraded cooling with a cool-to-the-touch cover, high-density motion-reducing coils, breathable memory foam, and gel foam. The reinforced mattress edge increases durability, while the antibacterial cover keeps the mattress protected. Available in a tight top firm.