A beautiful Orthopaedic mattress with a 12.5 gauge spring unit with a perimeter zone. At a fabulous 11inch depth you can feel a mass of support allowing for comfort and a strong springy feel. With deep tufts over the coil systemthe strength is well masked with some padded luxury!Finished well with a stitched border in a high quality damask this mattress is excellent value and would make a good edition to a metal or pine bedstead."