The Symphony mattress features 1000 springs individually nested in their own cloth pockets, giving freedom of movement to each spring and allowing the mattress to mould to your body's unique contours. With additional layers of upholstery for a luxurious feel, the Symphony is all you need for a perfect, restful night's sleep. 13.5 gauge spring system. Pocket Sprung Tufted Medium tension
13.5 gauge spring system.