The Innerspring Memory Foam Combo Mattress by Flex-A-Bed features a unique dual construction of durable innersprings and Visco memory foam. This combination allows for a sleep surface that is as comfortable as it is supportive. The Innerspring Memory Foam Combo Mattress also features the signature lush, multi-layered quilted topper and non-slip base layers to allow the mattress to seamlessly move with the adjustments of the bed frame. The Innerspring Memory Foam Combo Mattress is made to fit your Premier or Hi-Low Flex-A-Bed; coming in a variety of sizing options.