What are small sofas called?

loveseats.

At Simplicity Sofas we manufacture full-size, modern armchairs mid-size and small sofas. The small sofas are also known as “apartment sofas.” The lengths of the small apartment sofas vary between 66″ and 77″ but all share a common distance between the arms of 54″. The love seats are 10″ shorter than the Apartment sofas.