The Comfort Solutions Signature Collection 50/30 has been expertly and luxuriously designed in conjunction with data from the Comfort Solutions Lab® to fulfil the needs of individuals with the Comfort Solutions Sleep Code 50/30. This mattress features edge-to-edge pocket spring units which create a luxurious and large sleeping space. The edges are reinforced to prevent sagging as you sit on the edge of the mattress. However, possibly the most impressive feature of them all is the removable comfort capsule, comprised of carefully selected foam, which sits atop the support capsule with our signature exclusive non-slip closure. The comfort capsule can be easily removed and rotated for even wear.