Sometimes it's worth it to follow celebrities on Snapchat, just to see their private plane content. It's voyeuristic and so delicious to imagine what life would be like if you had a full bed, comfy armchairs, pillows, and blankets every time you flew the friendly skies. In real life, you're probably in a middle-back row on a packed commercial plane, with no clue how to get some shut-eye in the sky.
There are a few reasons why it's so hard to sleep on the plane: It's noisy, you're confined to a small space, and most people can't sleep sitting upright, says Nitun Verma, MD, a sleep physician at Crossover Health in San Francisco, and spokesperson for the American Academy of Sleep Medicine. "Also airplanes have lower levels of oxygen and humidity, and that can make people uncomfortable," he says.