The term DEN PIECE is a collective term for furniture pieces that are typically found in a den or living room. These pieces include a SETTEE, which is a long couch with a back and arms, a SOFA, which is a large upholstered piece of furniture with a back and arms, an OTTOMAN, which is a low upholstered seat without arms or a back, an ARMCHAIR, which is a single chair with arms and a back, and a DAYBED, which is a SOFA-like piece of furniture that can be used as a bed.