Answered by Mr.SHOCK from United Kingdom | Mar. 16, 2012 20:52
Hard Sleeper is open and comprises six fixed bunks, arranged as an upper, middle and lower on either side. Soft Sleeper is private compartments which are fitted out to a higher standard. Deluxe Soft Sleeper is the top level sleeper and the most expensive ticket on a train but only equipped by a few of trains. And the following link may help you:
https://www.travelchinaguide.com/china-trains/tickets.htm