Yes, such as Luxury Soft Sleepers. But they are only equipped on a few of trains, such as the Beijing-Lhasa trains, Shanghai-Hong Kong and some other long journey trains. There are only two comfortable bunks in one compartment, and the ticket price is usually very expensive. In addition, a double action door allowing separate access to the two upper and two lower bunks is available in the common soft sleeper compartment, which has four bunks.