How to Use a Pillow on a Plane. If you're wondering how to sleep on a plane, the most common way is to wear a neck pillow. You'll want to slip it snugly around your neck and leave a gap in the front. While this does work, turning the pillow so that the gap is at the back provides a whole lot more comfort.

While most people wear a U-shaped neck pillow with the opening at the front, many frequent fliers and sleep experts suggest wearing it backward (with the opening at the back of your neck) for better support. When you wear the thickest part of the pillow under your chin, it prevents your head from "nodding" forward—the most common cause of waking up during a flight. If you prefer the traditional way, make sure to secure the toggles or buttons at the front to keep the pillow from sliding apart. For wrap-style pillows like the Trtl, you should position the internal support against your shoulder or jawline, depending on which way you lean. The goal is to keep your neck aligned with your spine and fill the gap between your head and the seat or window. Always ensure the pillow is snug but not tight enough to restrict circulation or breathing.