Details Base Layer: 1″ HD Eco Flex Foam Support System: 5 Zone n-Compass 8″ Individually Encased Comfort Coil Spring With Steel Edge Support, 1046 Coils Comfort Layers: 2.75″ Eco Flex Foam, 1″ Gel-Infused Memory Foam Quilt Layers: 2.25″ Eco Flex Foam Firmness Scale: … read more