This innovative mattress incorporates a generous layer of memory foam material which moulds to the shape of your body to provide correct support & spinal alignment. Enhanced with the unique Postureline&153; Spring System in high quality damask fabric provides excellent levels of comfort & support to ensure a great nights sleep. Features & Benefits: Unique Postureline spring system Three times the number of springs than an ordinary mattress Durable & Long Lasting Continous interlinked springs No roll together Contours to your bodies natural shape No turn mattress