sleeper ticket

Hello!

I'm reading a dialogue between a clerk and a customer talking over the phone. The customer wants to book a train ticket. I could not understand the meaning of "sleeper ticket." Could you help me, please?



A: Good evening, Central Trains. How may I help you?

<...>

B: How many trains are there tomorrow?

A: Just the one. It leaves at thirteen thirty-three.

B: OK. I’d like to book on the night train, please.

<-----Excess quote removed by moderator (Florentia52)----->

https://www.wordreference.com/definition/sleeper

3 a railroad car with beds or special compartments for passengers to sleep in.

The ticket includes the use of a bed in one of those cars (at a higher price).

Myridon said:

sleeper - WordReference.com Dictionary of English

The ticket includes the use of a bed in one of those cars (at a higher price).

Great! Got it! Thanks a lot!!