Sleeper compartment of a railroad passenger car

A sleeper compartment of a railroad passenger car, comprising:

• sidewalls of the compartment, partition walls, and longitudinally arranged sleepers, the length direction of the longitudinally arranged sleepers consistent with the length direction of the railroad passenger car, characterized in that inside the compartment are provided at least two parallel columns of the parallel longitudinally arranged sleepers, the longitudinally arranged sleepers at two sides are connected to the sidewalls of the compartment respectively, each column of the longitudinally arranged sleepers is formed by joining no less than two sleepers, each of the partition walls is provided between two adjacently joined sleepers, and a corridor is provided between two adjacent columns of longitudinally arranged sleepers, the sleepers in the sleeper compartment are arranged in two layers, which are an upper-sleeper layer and a lower-sleeper layer, an upper-sleeper in the upper-sleeper layer is movably joined to the sidewall, and beneath the upper-sleeper two sofas arranged face to face are provided which can slide toward middle to form a lower-sleeper in the lower-sleeper layer.