"Sleeper" can also refer to a type of accommodation on trains, buses, or ships, especially those with facilities for passengers to sleep during long journeys. A "men sleeper" in this context might describe a specific type of sleeping accommodation tailored for male passengers.In sports or fitness, a "sleeper" can refer to a rest or recovery period, often crucial for muscle growth and repair. "Men sleeper" might describe specific recovery strategies or products aimed at aiding men in recuperating after workouts.