I just saw this on View Your Deal https://viewyourdeal-tubulartravel.com/ and ordered 3, 1 for me and 2 presents. I have no idea if it will work, but anything to lighten the suitcase load can't be all bad. Since I doze, can't sleep, on planes, I need some kind of pillow anyway and don't like the blow-up one I have. Thought I'd share. Sale ends tomorrow 10/15.
REVIEW: My tubular pillow arrived today 10/21. To do a quick test for usability I first stuffed it with a hooded sweatshirt then sat on the sofa watching TV for a few minutes first as a neck pillow and then as back support. No problems, no complaints. I would have had room to add a sweater and maybe something else that is small.
For a second test I stuffed it with a thigh length coat which fit but had no room for more clothes. It worked as a thick neck pillow but was too thick for comfortable back support. The length when filled is about 30" (I didn't measure but that 's about what my coat is), the strap to close it around your neck/body is adjustable with snaps and rings at both ends.
Unstuffed it is light weight nylon and easily fits into its own small carrying pouch. Only complaint is that it came with a key ring but no snap on the pouch to hook it to a tote or purse when unstuffed.
Website to order is https://tubulartravel.com/. At half price ($15) it was a good deal but the View Your Deal offer has expired so it's now $30. That makes it expensive as travel pillows go. If you're trying to gain packing space it would be worth it especially for coats, jackets and sweaters that take up so much carry-on suitcase space or for a change of clothes if you're checking luggage.