An aircraft cabin comprising a passenger seating arrangement, the passenger seating arrangement comprising a column (C1, C2)of seat units (11A, 11B) located adjacent an aisle, the column (C1, C2) of seat units (11A, 11B) and the aisle both extending in a longitudinal direction parallel to the longitudinal axis of the aircraft cabin, wherein: the column (C1, C2) comprises a multiplicity of pairs of seat units (11A, 11B) arranged consecutively along the longitudinal direction, each pair of seat units comprising an inwardly-facing seat unit and an adjacent outwardly-facing seat unit, the inwardly-facing seat unit being angled at an acute angle to the longitudinal axis of the aircraft and facing inwardly towards the aisle, and the outwardly-facing seat unit being angled at an acute angle to the longitudinal axis of the aircraft but facing outwardly away from the aisle, wherein the outwardly-facing seat units are facing one of forwards or backwards, and the inwardly-facing seat units are facing the other of forwards or backwards, wherein each seat unit (11A, 11B) is configurable between a seating configuration and a flat-bed configuration, and wherein the passenger seating arrangement further comprises a plurality of entrance ways, each entrance way being located between a neighbouring pair of seat units, and each entrance way being a shared entrance way to provide access from the aisle to two seat units (11A, 11B), the two seat units being an inwardly-facing seat unit of one pair and the neighbouring outwardly-facing seat unit of the neighbouring pair, wherein an inter-pair privacy screen is positioned between neighbouring pairs of seat units, the inter-pair privacy screen extending only part-way between the inwardly-facing seat unit of one pair and the neighbouring outwardly-facing seat unit of the neighbouring pair, thereby leaving an opening through which a passenger may pass to access one of said seat units, wherein each inwardly-facing seat unit has a foot receiving end configured to receive a passenger's feet when the inwardly-facing seat unit is in the flat-bed configuration, and wherein the foot receiving end comprises a wall defining a partially enclosed space for receiving the passenger's feet, wherein each outwardly-facing seat unit comprises a head-receiving end for receiving a passenger's head, and wherein the head receiving end adjoins the foot receiving end of the inwardly-facing seat unit in the respective pair of seat units. the column (C1, C2) comprises a multiplicity of pairs of seat units (11A, 11B) arranged consecutively along the longitudinal direction, each pair of seat units comprising an inwardly-facing seat unit and an adjacent outwardly-facing seat unit, the inwardly-facing seat unit being angled at an acute angle to the longitudinal axis of the aircraft and facing inwardly towards the aisle, and the outwardly-facing seat unit being angled at an acute angle to the longitudinal axis of the aircraft but facing outwardly away from the aisle, wherein the outwardly-facing seat units are facing one of forwards or backwards, and the inwardly-facing seat units are facing the other of forwards or backwards, wherein each seat unit (11A, 11B) is configurable between a seating configuration and a flat-bed configuration, and wherein the passenger seating arrangement further comprises a plurality of entrance ways, each entrance way being located between a neighbouring pair of seat units, and each entrance way being a shared entrance way to provide access from the aisle to two seat units (11A, 11B), the two seat units being an inwardly-facing seat unit of one pair and the neighbouring outwardly-facing seat unit of the neighbouring pair, wherein an inter-pair privacy screen is positioned between neighbouring pairs of seat units, the inter-pair privacy screen extending only part-way between the inwardly-facing seat unit of one pair and the neighbouring outwardly-facing seat unit of the neighbouring pair, thereby leaving an opening through which a passenger may pass to access one of said seat units, wherein each inwardly-facing seat unit has a foot receiving end configured to receive a passenger's feet when the inwardly-facing seat unit is in the flat-bed configuration, and wherein the foot receiving end comprises a wall defining a partially enclosed space for receiving the passenger's feet, wherein each outwardly-facing seat unit comprises a head-receiving end for receiving a passenger's head, and wherein the head receiving end adjoins the foot receiving end of the inwardly-facing seat unit in the respective pair of seat units.