A pocket spring unit and a memory foam layer makes for an ideal mattress choice if yoursquore looking for both support and comfortthe worldstores pocket memory mattress uses a pocket spring unit to offer a consistent sleeping surface via up to 1500 individually pocketed springs that work independently from each other in accordance to your body shape and movementthe memory foam layer adds an element of comfort to the mattress this layer allows for pressure points between your body and the ma