Pocket spring units are typically used in better quality mattresses. The amount of springs used are commonly far greater than used in a standard open coil sprung mattress, with rule of thumb being that the higher count of springs then the better the quality and more supportive the mattress will be. This is due to the fact that every spring works individually, meaning they can work around the contours of the body far more effectively offering support where you need it the most! Here at Own Furniture we have a vast range of pocket sprung mattresses that vary from the amount of fillings used to what the fillings consist of meaning we have something to cater for everyone! If you need any further assistance in choosing your perfect mattress, we are here to help! Call a sleep expert on 0330 014 7733 or email us at firstname.lastname@example.org.