The Chatham Isle Luxury Plush Hybrid mattress by Stearns & Foster Estate Hybrid collection features an adaptive fabric that works with moisture-wicking Tencel fibers for improved breathability that softer than silk and cooler than linen, Hybrid technology that allows you to truly experience the indulgent comfort of the PrimaSense memory foam, a layer of premium gel foam and gel memory foam to deliver an elevated feel, AirVent system, and the IntelliCoil® advanced designed to support and cradle you with even more adaptive support for every type of sleeper.