In order to be able to provide in-flight emergency medical aid to patients on board more efficiently with minimum space, an aircraft, in one example, includes a seat device providing a first section of a reclining position region and a reclining position device which includes a second section of the reclining position region. In addition to use in aircraft, a reclining device, in one example, includes a seat device providing a first section of a reclining position region and a reclining position device, which provides a second section of the reclining position region, may also be used in other transportation vehicles.