The new BOYD Responda-Flex (Viscoelastic "Memory Foam") mattresses have taken this Specialty Mattress concept and made it even more appealing! BOYD Responda-Flex mattresses have a unique temperature sensitive/slow recovery system that relieves body pressure even better! At the heart of BOYD's Responda-Flex mattresses is a layer of SensusTM "Viscoelastic" (Memory) Foam, that molds perfectly to your body shape and weight. A Lyocell cotton cover, which naturally dissipates moisture for a dry, hygienic sleep surface is extremely comfortable, as well as durable, which makes it the perfect choice for this premium mattress. You will be amazed at how this deceivingly plain looking bed can be such a source of so many hidden benefits!