The Ashcombe Super Firm Mattress offers an ultra-supportive feel and is suitable for back sleepers. Crafted with Smart - Tex fabric to draw away moisture for a cool and comfortable sleep no matter the season. An enhanced centre third Comfort - Core layer with Sense - Material reduces pressure on your back, providing targeted pressure relief. If partner disturbance is a concern, Dura - Flex modules absorb sudden movements so you can enjoy a less interupted sleep. The Ashcombe Super Firm mattress features Uni - Cased walls for edge to edge support to optimise the sleep surface and ensure you never feel like you will roll out of bed. Available in Single, Single Long, King Single, Double, Queen, King, and Super King sizes. Pair it with the Posturepedic Pewter base or elevate your sleep experience with a Sealy Adjustable Base.