How to choose a sofa? First, be sure to sit on the model you like and even try to lie down (sellers, really interested in the client would not object.) Second, if a folding sofa (and probably precisely this, and you'll buy), try to push it a few times. You do not have the mechanism of the ceremony, because you'll have you doing this operation more than one hundred times! And never ask the seller a question "A sofa with springs or foam rubber?". Today there is a foam, which is superior in quality cheap springs. But – first things first. itzer. Me-I-yagky! .. When buying furniture, sitting on a sofa or chair, you should feel the surface of the bend. Once you get up, it should quickly adopt the original form. The main materials used for packing items of upholstered furniture – foam, hollofayber, perioteka. Polyurethane foam – one of the main and most common materials for the manufacture of upholstered furniture and mattresses. Hollofayber (Synthetic Down) – a new material is available as an insulator and filler. It hollow, treated silicone emulsion fiber, having the form of a spiral spring. The elastic fiber compressive structure is soft, has anti-allergic properties, does not absorb odors easily erased. Perioteka – nonwoven based on polyester fiber. Produced by the vertical fibers of the code, which provides a high reversible deformation. Definitely say that it is better, it's hard. It depends on the your senses – how your body is pleasant or that stuffing.