The silentnight memory foam mattress contains a layer of memory foam which moulds to your body for pressure free comfort high density miratex foam provides edge to edge support for more sleep space and absorbs movement from both you and your partner so you do not roll together this mattress has been treated with purotex to reduce moisture and dust mite allergens creating a drier fresher and healthier mattress further features include 3 zoned support which provides soft support for your sho