Boeing's recent patent has revealed an idea which can help passengers on an airplane sleep in comfort with a "sleep support system" that unfolds into a pseudo massage table with a "face relief aperture".
According to the Verge, The device is built into "backpack" that can be stowed under an airline seat.
The device is built into "backpack" that can be stowed under an airline seat. After the backpack is taken out, passengers can open it and unfold the head rest.
However, storing hundreds of these backpacks on board could to be a major issue.
Since this is just a patent, there's no guarantee Boeing will ever make such a product.