Couches are usually to be found in the living room or the lounge. They come in a variety of textiles and in leather. A typical couch seats two to three people and has an armrest on either side. Many different types of couch exist: popular types include the divan, the chaise longue, the canapé or the ottoman. Also, to save space, some sofas double as beds (sofa-bed, daybed or futon).

There are other types, including two-seater, three-seater, corner and chaise longue. A smaller version of the couch which may only comfortably seat two people is more commonly known as a loveseat. A sectional sofa (often just referred to as a "sectional") is formed from multiple sections (typically 2 to 4) and usually includes at least two pieces that join at an angle of 90 degrees or slightly greater.

A three-piece suite is composed of three couch pieces (generally, a two- or three-seater and two armchairs).