The sealy posturepedic pearl latex mattress is the ideal mattress to give you a perfect nights sleep it has a deep layer of innergetic latex atop the sealy posture tech 660 response spring unitthe sealys posturetech 660 response spring system is designed to provide ideal weight distribution so each part of the body has all the support that is needed it provides maximum pressure relief by spreading more of your bodys weight across the mattress ensuring less tossing and turning to give a restful n