Today it is difficult to imagine a dwelling without a sofa. This piece of furniture is not just for sitting and watching TV. You can sleep on it. Various models on the market today are distinguished by a transformation mechanism, upholstery type, design, purpose, and so on. Sooner or later you have to change upholstered furniture in the apartment. Many consumers are lost in the current diversity of models. Next, let's figure out how to choose the right sofa. From the article we learn what these products are, and also we will get acquainted with the main points that should be paid attention to when buying.