Sleeping car compartment and sleeping car

A sleeper train carriage, comprising a side wall extending along a length direction of a train body and end walls arranged at a front end and a rear end of the side wall, wherein the side wall and the end walls jointly form a carriage body for accommodating passengers;

• compartments and an aisle are provided within the carriage body, and a partition wall is provided between the compartments and the aisle, wherein the partition wall comprises a compartment-side partition wall and an aisle-side partition wall, wherein the aisle-side partition wall comprises a fixed plate and a movable plate which are arranged in a vertical direction, the movable plate is located above the fixed plate, an upper end of the movable plate is fixedly connected to one end of a top plate of aisle, the other end of the top plate of aisle is detachably connected to the side wall of the train body, and a lower end of the movable plate is hinged to the train body, so that the movable plate and the top plate of aisle rotate together around a hinged point.