Beautyrest Polyurethane Foam Mattress Elevator | 5" to 1" Gentile Decline Below Mattress Elevator - King King Size: (1) Foam Elevator 80" x 76" x 5" Gentle 5" to 1" decline keeps your upper body higher than your lower body Relieves discomfort during sleep Hypoallergenic and durable polyurethane foam construction 100% Satisfaction guaranteed