Sleep Master 1.5-Inch Gel Memory Foam Comfort Curve Topper, King Top 2inch comfort layer of memory foam A 4" high-density foam base for support A 2inch layer of our pressure relief ventilated foam to promote air flow and reduce pressure in key areas - head-shoulders, hips and feet Our memory foam is infused with a green tea extract to help reduce odors in a natural way Mattress measurements: 60" x 74" x 8"