There are three main types of mattresses in the market, Memory foam, Pocket Sprung Or Open coil Mattress. All these three types of mattresses go through a different manufacturing process. Price sometime is not a main factor but most important factor is, which mattress makes you feel a better sleep. Memory foam mattresses are expensive and designed to fit the shape of your body. It also keep you warm. The most popular mattress is Pocket sprung mattress and do not mould to body shape in the same way as memory foam mattress does. It also makes the body warmer. Lazy Beds offers huge and comprehensive selection of quality pocket sprung mattresses in single, small single, double, small double, king size and super king sizes at the UKs lowest prices. The third type of mattress is open coil mattress which is cheaper than any other type of mattresses. It is made from a single looped wire. Because spring in open coil move as one unit then it is more likely to be disturbed by your partner moving around during the night.