Platinum Deluxe Memory. A thick, memory foam mattress with a unique cover. The exclusive Cocona cover uses naturally produced carbon particles from a coconut husk to filter out moisture and smells, leaving the mattress clean, fresh and cool. It features an impressive 50mm layer of high density 50kg/m memory foam for body moulding comfort and reflex foam for added support. And buy this Platinum Deluxe Memory Was £299.00 Now £285.00.