Memory Supreme 2400. An extra deep, pillow top mattress with a build that features pocket springs, memory and reflex foam. There are two layers of pocket springs with up to 2400 in a kingsize model. Supportive reflex foam is topped with 90mm of memory foam, both boasting superb orthopaedic properties. A Cool Comfort cover works to reduce moisture building up, allowing the mattress to breathe. And buy this Memory Supreme 2400 Now £799.00.