An article of furniture includes a seat assembly that includes a rectangular seat support frame and a rest mount arranged on each of at least two adjacent sides of the seat support frame. A rest assembly includes a rectangular rest support frame and a seat mount arranged on at least one side of the rest support frame. The article of furniture includes at least one elongate connector, the, or each, elongate connector having a first portion that is engageable, in a detachable manner, with either of the rest mounts, and a second portion that is engageable, in a detachable manner, with the seat mount.