<human>:  What is the most comfortable way of sleeping on an airplane flight?
<bot>: The most comfortable way of sleeping on an airplane flight is to bring a neck pillow and dress in comfortable clothes. Try to arrange a window seat so you can lean against the wall and get some extra support while sleeping. If you can, try to book a flight that offers extra legroom so you can stretch out during the flight. Bring a blanket and an eye mask to block out bright lights and other distractions so you can get some quality sleep.