Our Memory Plus mattress offers the best balance of next generation, pressure relieving materials, wrapped in a luxurious Florentine stitched cover which has carbon fibres woven directly in to it. Carbon fibres create a barrier to dust and particles in the air ensuring a hygienic sleep surface. The mattress cover is also infused with Sanitized protection, providing you with the ultimate anti bacterial, antimicrobial and anti dust mite protection. Treat yourself to a new Dormeo Memory Plus mattress and start getting a better night sleep today. Mattress Firmness Medium.