This silentnight oslo memory foam mattress is specifically designed with miracoil spring system for a quality sleep and to bring support to all people irrespective of their sizes and shapes this spring system blends perfectly with memory foam that responds softly to the pressure or weight exerted contouring to the bodys natural shape the acupressure pad provides softer support where you need the most offering firmer support to heavier parts of the body to wake up with fresh feel and