A pocket sprung mattress is made from individual pocket springs. Each pocket spring is enclosed within its own fabric pocket. Each spring works individually from each other, when pressure applied to that area the spring will react. This provides an increased level of support specific to each invididual sleeping on the mattress.
Unlike a traditional open coil mattress with Pocket springs they don’t move as a whole unit. This will help to limit and reduce the passing of movement to other parts of your mattress. With each individual pocket spring it works independently to support your body correctly.