A pocket sprung mattress has layers of individual pocketed springs. The springs within these pockets are not linked together, which means they can act independently of each other. When lying on a pocket sprung mattress with a high density of springs, only the springs directly underneath you are depressed, so you don't disturb your partner. We recommend that couples consider a pocket sprung mattress so you each have independent support. Pocket sprung mattresses also tend to have more comfort layers and have a more luxurious feel than open coil mattresses.