Sleeping upright while traveling can be challenging without the proper neck pillow. Choose a pillow that wraps comfortably around your neck and make sure the fabric is moisture-wicking and breathable. You can opt for travel pillows that adjust to your size with the help of buttons, like those from PILLOW of HEALTH, or neck pillows made of viscoelastic memory foam that mold to the unique shape of your neck and head, like Memory Travel Core.