夜行バス (やこうバス) is a type of long-distance bus service in Japan that operates during the night. These buses are designed to transport passengers between cities while they sleep, allowing them to save on accommodation costs. They typically have comfortable seating and amenities like blankets and restrooms. Many travelers use 夜行バス for its affordability compared to trains, such as the 新幹線 (Shinkansen). The buses usually depart in the evening and arrive at their destination the next morning, making them a popular choice for students and budget-conscious travelers looking to explore different regions of Japan.