Abstract: A chair, suitable for aircraft or other transport, which is convertible into a berth, comprising in combination(a) a seat base,(b) a back rest, movably mounted on the rear portion of the base so as to be capable of being reclined from the erect, sitting position into a substantially horizontal, stretched berth position,(c) a leg rest, mounted at the front portion of the base, and capable of being moved from an unobstructive position under the base into a substantially horizontal berth position, and(d) a supporting means for retaining and locating the base berth in a sitting position and alternatively in a predetermined berth position;wherein the supporting means is adapted and located so as to permit in use a second, chair to be stretched and moved into a berth position underneath said first chair, whenever the latter is in the elevated berth position with the rests in the stretched state; and in particular to such pair of chairs and rows thereof providing compartmental arrangements.