sleeping car

a railroad car fitted with berths, compartments, bedrooms, or drawing rooms for passengers to sleep in.

Origin of sleeping car

An Americanism dating back to 1830–40

There was no sleeping-car for the author of "A Lodging for the Night."

Little Journeys to the Homes of the Great, Vol. 13 |Elbert Hubbard
No, they were not hungry; they had dined in the sleeping-car.

The Pit Town Coronet, Volume I (of 3) |Charles James Wills
But the simile is weak, for there is a vast difference between an open sleigh and a sleeping-car.

From Paris to New York by Land |Harry de Windt
So he had had with him just enough to get his own second-class ticket, her first-class, and a sleeping-car.

Lady Rose's Daughter |Mrs. Humphry Ward

He stared at Zada, and his anger ran out of his face just as the water ran out of the silver washbowl in the sleeping-car.

We Can't Have Everything |Rupert Hughes

sleeping car

a railway car fitted with compartments containing bunks for people to sleep in