sleeper

Universal Words noun 1 (used with an adjective) a person who sleeps in a particular way: a heavy / light / sound sleeper 2 a person who is asleep: Only the snores of the sleepers broke the silence of the house. 3 a night train with beds for passengers on it: the LondonEdinburgh sleeper * I came up last night on the sleeper. 4 = SLEEPINGCAR 5 (BrE) (AmE tie) one of the heavy beams of wood or CONCRETE on which the rails on a railway/railroad track are laid 6 (informal, especially AmE) a film/movie, play or book that for a long time is not very successful and then is suddenly a success