The Memory Pocket Star is a flexible mattress with increased concentration on support and pressure relief. 24cm of luxury with a double jersey fabric cover that can be removed fo washing.Made with a unique upper layer of visco-elastic (memory foam) which is body temperature sensitive and prevents bedsores.Layered with cotton wadding and high density foam this coats the next feature on the mattress which is the many pocket springs designed to relieve pressure and body stress relinquishing it to other areas of the mattress.This special mattress also contains an 8cm boundary made of reflex foam preventing you from rolling off the mattress while you sleep.A star product and a star buy.