The Comfort Solutions Signature Collection 75/30 has been expertly designed and crafted in conjunction with data from the Comfort Solutions Lab® to suit individuals with the Comfort Solutions Sleep Code 75/30. The mattress features an edge-to-edge Pocket Spring unit which provides support and durability. A removable comfort capsule with our signature revolutionary non-slip closure allows for easy rotation and even wear. The removable comfort capsule contains a carefully selected combination of Pure Foam that will provide the needed comfort and support.