The Acumen Firm perfectly balances extra-firm support and deep pressure-relieving comfort, delivering a luxurious and restful experience every time you lie down. The mattress features 3 exclusive technologies designed to balance comfort, support and temperature regulation all night long. You'll also find a layer of Serta Support Foam underneath the mattress's Cool Action material – bringing you all the benefits of a firm, yet comfortable surface. Pairing this iComfort Directions mattress with the Serta Motion Custom adjustable foundation will make customizing your bedroom simpler than you ever thought possible. Complete with 9 luxury features including 6 built-in massage levels as well as Bluetooth connectivity, USB ports and high-quality wireless speakers, our most advanced adjustable base is the essence of convenience and style.