Abstract: The cabin includes a rear compartment including at least one luggage storage area and/or a lavatory, a main compartment including a plurality of seats, and an intermediate compartment. The intermediate compartment includes, on either side of the fuselage, isolation areas, and a central passageway, having a width greater than 50.8 cm. Each isolation area includes a seat and longitudinal partitions delimiting an access opening to the isolation area. Each seat is maneuverable between a retracted seating position for an occupant of the isolation area and an extended lying position of an occupant of the isolation area.