The Comfort Solutions Signature Collection 50/60 has been expertly designed using data from the Comfort Solutions Lab® for individuals with the Comfort Solutions Sleep Code 50/60. This mattress features an impressive and exclusive removable Pure Foam comfort capsule which has our signature non-slip closure, allowing you to remove, rotate and replace the capsule as needed for even wear. The comfort capsule rests on equally impressive edge-to-edge pocket spring units, which provide support and comfort as well as ample sleeping space.