Getting comfortable on a long-haul flight requires a combination of the right gear and healthy habits. First, dress in breathable layers and wear compression socks to prevent leg swelling and reduce the risk of DVT. Invest in a high-quality, supportive neck pillow (memory foam or inflatable) and a contoured eye mask to help signal to your brain that it’s time to sleep. To manage the dry cabin air, stay hydrated by drinking water consistently and avoid caffeine or alcohol, which can disrupt your sleep cycle. For entertainment and noise reduction, noise-canceling headphones are essential for blocking out engine hum and cabin chatter. If you’re in economy, try to secure an aisle seat so you can easily stand up to stretch your legs and back every two hours. Bringing your own small "comfort kit" with lip balm, moisturizer, and a toothbrush can also help you feel refreshed. Finally, try to sync your meals and sleep with the time zone of your destination as soon as you board to minimize the physical toll of jet lag.