An aircraft cabin including at least two seats, which seat each include at least two elements which can be moved relative to each other and at least one actuator for the relative displacement of these movable elements, and at least one central power control unit in the cabin in order to allocate a total available power level to each seat, where each seat includes parts for reading at least one item of morphological information of the passenger sitting in the seat, and a part for transmitting information to the central power control unit in accordance with each item of morphological information, and the central power control unit is capable of allocating to each seat a total available power level in accordance with each item of morphological information.