The mattress innersprings that is made up of the fabric-encased coils,was designed to comply with the ergonomic concepts,the application of superior high-carbon steel wire and advanced production processes makes sure it is capable of having the comfortable resilience and high-strength support force.The fabric-encased coil that was made of the environmental-friendly non-woven fabric,prevents coils from disturing each other and enables it to have a perfect fit to each part of your skin and body curve.Meanwhile,let your spine and body get the most comforable and natural shape while enjoying your deep and sweet sleep in a very relax way.