Sleeping car

The sleeping car or sleeper (often wagon-lit) is a railway passenger car that can accommodate all passengers in beds of one kind or another, for the purpose of sleeping. George Pullman was the main American innovator and owner of sleeper cars in the late 19th and early 20th centuries when railroads dominated intercity passenger travel.

The first such cars saw sporadic use on American and English railways in the 1830s; they could be configured for coach seating during the day.