A sleeper car is a type of railway carriage designed for overnight travel, providing passengers with sleeping accommodations. These cars typically feature private compartments or rooms with beds, allowing travelers to rest comfortably during long journeys. Sleeper cars are commonly found on long-distance trains, such as those operated by Amtrak in the United States or Indian Railways in India. Inside a sleeper car, amenities may include bedding, washbasins, and sometimes even en-suite bathrooms. Passengers can enjoy meals served in their compartments or in a dedicated dining car. The design of sleeper cars aims to enhance the travel experience by offering a cozy and convenient way to travel overnight.