The Coralview Firm mattress features Sertas Cool Twist® Gel Memory Foam and new 739 Custom Support® Firm Individually Wrapped Coil Innerspring. This mattress also features a layer of Serta® Balanced Support Foam for that just right combination of cushioning comfort and enhanced support.
Serta Support Foam
½ Cool Twist® Gel Foam
739 Custom Support® Innerspring with Best Edge® Foam Encasement