Sleeper seats, wherein each comprises a head rest, a back rest, a seat pan or seat cushion, a leg rest, an ottomans and a dividers between the individual seats with the their column. The four seats are arranged in a staggered chevron formation and two columns. All the seats in each column are parallel with each other and set at a “herringbone” angle αto the column direction, in other words their central axes A make the angle αwith a longitudinal axis of the array. Each seat extends from its column side of the longitudinal axis across the axis to a small extent. Along the axis, first a seat from one column crosses the axis and then a seat from the other column crosses the axis and so on.