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Red Eye Flights refer to flights scheduled during late-night hours, often between 9 pm and 6 am. These flights are typically cheaper than daytime flights and can offer a more peaceful flying experience due to fewer passengers. However, they may cause disruptions in sleep patterns or lead to jet lag. When booking Red Eye Flights, travelers should consider the duration of the flight, their destination's time zone, and any layovers that might affect their overall travel experience. This subcategory fits within Flight Booking as it is a specific type of flight schedule, which falls under Travel and Transportation.