Enjoy a great nights sleep with the silentnight london 2000 pocket memory mattress this mattress boasts a 2000 zoned mirapocket spring system body moulding memory foam for added comfort and a breathable border for optimum airflow it is hypoallergenic which keeps the mattress naturally dust mite freeplease note spring count refers to a 5ft kingsize modeldimensionssingle w 90cm x l 190cmdouble w 135cm x l 190cmking w 150cm x l 200cmsuperking w 180cm x l 200cmmattress depth 30cm