Falling asleep at 35,000 feet requires a combination of "sleep hygiene" and environmental control. In 2026, frequent flyers recommend eating before you board so you aren't waiting for the meal service, which can take two hours of valuable sleep time. Once on board, use a high-quality neck pillow (like the Trtl) and noise-canceling headphones to block out engine hum and cabin chatter. It is essential to wear layers and warm socks, as your body temperature drops when you sleep, and airplane cabins are notoriously chilly. Seat selection is also key; a window seat provides a surface to lean against and prevents you from being woken up by seatmates. To help your circadian rhythm, use a sleep mask to block light and consider natural aids like melatonin if your doctor approves. Avoiding alcohol and staying hydrated with water prevents the "dehydration grogginess" that often disrupts deep sleep. Preparing your mind by adjusting your "sleep debt" days before the flight can also make it easier for your body to settle into a natural rest despite the unfamiliar environment.