The Memory Gold Mattress is made from unique upper layer of high density visco-elastic polymer gel. Originally designed for NASA missions, it is soft & pliable following the outline of your body perfectly. So comfortable, the mattress provides the best possible support to your spine allowing your body to immediately find the best sleeping position, reducing tossing & turning. The extraordinary features helps blood to flow & circulate freely, preventing the nerves & muscles from numbing. A soft, dry cleanable zip off cover completes the mattress