Complete with a pocket spring this mattress boasts a hard density foam on the top and bottom. It provides soft support to the body and is tailor-made for your king-sized bed. Also, the pocket springs work independently from each other. What's more, the knitted fabric retains the coolness and lightness of the cotton fibre and adds to the strength, durability and wrinkle resistance of the material. Framed by piping, this patterned mattress is a worthwhile investment.