This BEST VALUE mattress features the exclusive Marvelous Middle TM , with 25% more support in the middle using more coils. The coil unit is power packed which increases lumbar support and durability throughout the mattress. Super Edge Plus TM offers added comfort and more surface area for better supported night's sleep. Head to toe helical wires help stabilize for less partner disturbance. This is topped with multiple cool-gel memory foam, high density and comfort polyurethane for long term comfort. We cover this with our Soft-Cool TM finish designer cover. A true value. FEATURES: 14” Mattress Height Soft-Cool Finish Designer cover. Works like Under Armor to wick moisture and heat away. 1” Cool-Gel Infused Memory Foam Lumbar Layer 13 gauge Tradtional Coil Unit with added Helical Wires; 420 Coils in Queen and 520 Coils in King Multiple High Density and Comfort Foam Layers For Long Term Durability 2 Cooling Layers 15 year non pro-rated warranty CertiPUR-US certified foams