It should be noted that the level of convenience of upholstered furniture depends not only on the shape, but also on its components — upholstery and stuffing. The best option for stuffing furniture is natural materials — fluff, vatin, felt, feather. However, most often in mass production, synthetics are used today — foam rubber, synthetic winterizer, polyurethane. This is, firstly, with the relative cheapness of artificial materials, and secondly, natural stuffing can be an allergen. Optimal can be called furniture in which different types of stuffing alternate in layers — this allows it to deform less. In addition, to maintain the shape and ease of rest in the manufacture of upholstered furniture, spring blocks of various structures are often used.
