couchettes

/K UW0 SH EH1 T S/
noun
  1. 1

    A couch.

  2. 2

    A compartment on a passenger train having berths for sleeping.

  3. 3

    A berth in such a compartment.

Source: https://en.wiktionary.org/wiki/couchette, https://en.wiktionary.org/wiki/couchettes