Offering a cushioned firm supportive feel, the Sealy Performance Coral Oaks delivers restful nights and rejuvenated mornings. Just under the soft, breathable ComfortLoft Cover, layers of SealyCushion Air Foam and SealyCool Gel Foam work together to provide conforming, flexible support while enhancing airflow for a cool, relaxing feel. An additional layer of SealySupport Firm Foam cradles each curve for an extra support. The Response Coil System offers comfortable deep down support, while Posturepedic technology places reinforced support in the center third of the mattress, where the most body weight is centered. And finally, the mattress border is reinforced with the SolidEdge HD System, offering an easier transition in and out of bed and more usable sleep surface. 10 Year Non-Prorated Warranty.