272 springs per m2 9 zones of mattress hardness each cover made of hypoallergenic material sewn-in zipper on three sides makes it removable, making it easy to keep clean polyurethane foam T25 high-quality foam with expanded material density and increased resistance to deformation felt separates the springs from the insert, natural felt extends the life of the mattress 9-zone pocket springs - the pocket spring system is characterized by the fact that each of the springs is placed in a separate pocket, which means that each spring works independently of the other. Possible wholesale for a lower price and delivery to Denmark of more than 50 pieces, we offer other sizes of mattresses, please call us, we speak English