thumb|upright=1.2|Pullman sleeping car, original to the William Crooks locomotive, on display in Duluth, Minnesota The sleeping car or sleeper (often ) 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 American innovator of the sleeper car.
thumb|upright=1.2|Pullman sleeping car, original to the William Crooks locomotive, on display in Duluth, Minnesota The sleeping car or sleeper (often ) is a railway passenger car that can accommodate all passengers in beds of one kind or another, for the purpose of sle,eping. George Pullman was the American innovator of the sleeper car.