The luxurious SmartSleep Pocket 1000 Mattress is made up of 1000 foam encased pocket springs with a 50mm top layer of high density foam and a high density support foam base.Individual pocket springs work independently to provide support and even pressure distribution as you sleep. The springs are encased in high density foam, giving edge to edge support and maximising the sleeping surface.A generous top layer of quality high density foam complements the pocket springs and provides excellent support.This mattress features a luxurious quilted cover with Fresche® Bioscience high performance antimicrobial treatment which inhibits house dust mites and offers durable and lasting protection against bacterial and fungal attacks.This mattress is made to standard in the UK and comes with a full 10 year structural guarantee for your peace of mind. It is delivered vacuum packed and rolled for easy transportation. Once unpacked, just give the mattress a few hours to fully expand.Please note: Spring count refers to a 5ft Kingsize model.Dimensions:Single: W 90cm x L 190cm x D 20cmSmall Double: W 120cm x L 190cm x D 20cmDouble: W 135cm x L 190cm x D 20cmContinental Double: W 140cm x L 200cm x D 20cmKingsize: W 150cm x L 200cm x D 20cmContinental Kingsize: W 160cm x L 200cm x D 20cmSuperking: W 180cm x L 200cm x D 20cm