Clean and dirty are relative, and the same is true for sleepers on the train.
For the sleeper car we took, before departing from the departure station, the crew had to go to the departure station cleaning workshop to collect clean bedding (sheets, quilt covers, pillowcases), and change the sheets and quilt covers after taking them back to the car. , put pillowcases in place, and fold quilts neatly, waiting for the train to leave.
▲Soft sleeper carriage▲
When the train arrives at the other station and all passengers get off the train, the crew will begin to collectively change the bedding. All bedding (sheets, quilt covers, pillowcases) used by passengers must be removed and replaced with clean bedding.
▲Hard Sleeper Car▲
If you board the train from the departure station, the bedding will be yours until you get off. For you, the bedding is of course Be clean.
If you get on the bus midway, the berth you sit in is the vacancy left by the passengers who got off midway (if the sleeper car is full and no one gets off the bus, you cannot buy a sleeper ticket), you can only Use bedding (sheets, quilt covers, pillowcases) used by passengers who got off the bus. Because the sleeper car is equipped with one set of bedding per person, there is nothing extra, and it can only be changed when you arrive at the terminal. If you are mysophobic, you may feel that your bedding is "dirty".
▲Ordinary Passenger Trains▲
Then again, if you go out and require the same sanitary conditions as at home, most of them cannot do it. As the saying goes, you won't get sick if you eat it without cleanliness. If we use the sleeper berths left behind by others who got off the bus, we can only trust that they are clean.
Because the system of "one customer, one exchange" is now implemented. In other words: this passenger is using a set of bedding from the time he gets on the train to the time he gets off the train. After the passenger gets off the train, the train conductor will immediately replace the bedding with a new one and wait for the next passenger to use it.
As for what I said, it is clean or not. It’s really hard to say.
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