1. Yes, there are child tickets for sleeping berths on trains in China.
2. The age limit for child tickets varies according to the policy of different railway companies, but generally refers to children between 6 and 14 years old.
3. Child tickets for sleeping berths are usually cheaper than adult tickets, with a discount rate of about 50% to 75%.
4. To purchase a child ticket for a sleeping berth, parents or guardians need to provide proof of the child's age, such as a passport or birth certificate.
5. Children under 6 years old can also travel for free if sharing a bunk with an adult passenger, but no extra bedding or facilities will be provided.
6. It is important to note that child tickets for sleeping berths may have some restrictions, such as limited availability or specific boarding times. It is recommended to book tickets in advance and check the policies of the railway company beforehand.