This Mon Trésor Luxury Firm mattress by Stearns & Foster Estate Tight Top features a sustainable-source Tencel cover made of moisture-wicking fibers, indulge quilt with silk & wool fibres supported by PrecisionMatch™ memory Foam designed to deliver indulgent breathable comfort coupled with premium memory foam, a layer of PrimaSense Gel-infused Comfort layer for stability and durability, Ventilated PrecisionEdge to provide long-lasting, durable support, 4 Airvents to increase airflow and pull warm air away from your body and the IntelliCoil Innerspring.