Having been looking into this travel pillow for a long time. It works perfectly for me. I used to use the pump horse ring shape one and did not pan out for me very well. I had great issue with my neck and without the correct pillow, This inflatable neck pillow works great when I travel overseas. It is comfortable and easy to carry as I travel all over the places. 6 different ways you can use it and just make travel a plus.
https://www.amazon.com/WOWGO-Inflatable-Ergonomic-Comfortable-Airplanes/dp/B074V482HQ