Sleeper trains are special trains designed for overnight travel, allowing passengers to sleep comfortably while they journey to their destination. These trains typically feature sleeping compartments, which can range from simple bunks to luxurious private rooms, providing amenities like bedding and sometimes even meals. Traveling by sleeper train is often a convenient and scenic way to cover long distances, as it saves time and accommodation costs. Many countries, including India, Europe, and the United States, offer sleeper train services, making it a popular choice for both tourists and locals seeking adventure or relaxation.