The Essex features our Polar Touch Cooling Cover for a gentle cooling sensation. For relaxing pressure relief, we layered in high-density Copper Memory Foam that offers healing and anti-inflammatory properties. Englander Edge technology, a full perimeter system eliminates that roll off feeling and provides a consistent sleep service across the entire mattress. Also inside is our pressure-relieving Copper Memory foam for a gentle transition with copper's healing and anti-inflammatory properties. For world-class comfort and support, this mattress has contouring, comfortable fabric-wrapped springs and our exclusive Englander edge technology, a full perimeter system eliminates that roll-off feeling and provides a consistent sleep service across the entire mattress.