This is my new favorite travel item. I used this for my 11 hour economy flight abroad last week and slept a solid 6 hours. I've used Cabeau pillows before, which always made me super hot and after a few uses, my head would still find a way to fall through the opening in the front. Because this design is going around the front of your eyes and not the neck, you're held in perfect alignment with no where to fall through and there are no heat issues because you're not wrapped with dense foam. The arm sling is also a great addition, held my arms in a lightly snug, comfortable position (and I wasn't worried about limbs ending up in my neighbor's seat). I would note that this setup appears to only be compatible with airplane seats that have the adjustable headrest attachment - if your seat is all one solid piece (like on Spirit) this will not work, unlike the Cabeau which can wrap around the back of the seat if necessary.