Get the comfort you deserve with the Nottingham Tight Top Firm Mattress from Serta. Featuring a ½” Serta PillowSoft Foam, 1” Serta Support Gel Foam, and ½” Serta Support Foam for the additional comfort and support that you deserve. The 800 series Beautyrest Pocketed Coil Technology provides flexible support precisely where you need it while isolating motion between two sleepers with individually wrapped coils in high density foam. This Beautyrest mattress is engineered to maintain its shape and comfort over the life of your mattress, so your sleep will be every bit as restful for many years. Lifestyle base friendly.