Our INDUSTRIAL mattress is a great value specialty firm/super firm model. Designed around a 12.75-gauge coil spring set with molded spring protection on both sides of the coils. The thicker coils create a firmer base on the pillow-top and the firm side. A cotton pad, and a layer of bonded cotton follow the molded spring protection. The needle-punched cotton pad lies under a 1-inch layer of special foam. Followed by a layer of poly foam. Finally the fine damask cover is quilted to create a specialty firm/super firm mattress.