Serta Perfect Sleeper Grantchester Extra Firm

Built for unwavering stability, this Serta Perfect Sleeper Grantchester extra firm mattress is driven by the Q4 Support System to distribute weight evenly and maintain a consistently firm sleep surface over time. Quilt Loft HD Memory Foam adds cushioning at the top layer while Cool Feel technology regulates heat, and adjustable base compatibility gives you full positional control for restorative rest. Features Mattress height approx. 14" Innerspring Extra firm Top type: tight top Compatible with an adjustable bed Box spring/foundation available (9" standard or 5" low profile) CoolFeel fabric; QuiltLoft HD memory foam; Q4 support system; zoned support Extra firm for stomach and back sleepers with extra support Meets federal fire safety standard CertiPUR-US certified foam Warranty: 10-year