Mattress construction: with three times more numbersof barreledsprings in the product. Its structure is divided into thress bearing sections for human head, back and legs based upon ergonomic consideration Product characteristic:The most intensive structure of pocket coils on the market at present, pocket spring which diameter of coil is 4cm, design according to the human bodies, three parts of different support of pocket coils. sleeping very smooth Features of those pocket spring mattress, independent spring mattress, box spring mattress. Quilt: mattress cover premium damask ticking with skin-friendly surface is quilted with polyster. wadding, super soft foam and durable, hypoallergenic nonwoven fabric. Middle upholstery: on the top of spring with cotton chips and comfort materials, offers and added element of comfort level. Insulation: two layers white cotton felt cushion overlap the pocket spring. skeleton which ensures the whole mattress durable and longevity than normall ones. Support: pocket spring mattress. independent coils, three parts different diameter wire coils, support the body, let people fell comfortable