I've wondered about these sorts of pillows
I can't sleep on an airliner well either.
And those neck pillows are pretty much useless for me. Maybe a little bit better if teh seat reclines, but not much. I've always reckoned that it's because I'm a side sleeeper. Can't sleep on my back, and using a neck pillow seems too much like back sleeping to me
I spent a premium for our last trip to Europe to get an upgraded nice memory foam neck pillow. It was notably better than others that I've tried, but still could only at best doze a little. I did ultimately get some sleep lying on the neck pillow that was lying on the tray table...sort of like a kid sleeping on the desk at school..... but it was tight. I'm 5-9, and it was really too tight for me to be lying like that. I woke up with a sleeping arm that stayed asleep for long enough that I was considering a trip to the doctor..thinking deep vein thrombosis. In hindsight, I probably should have! Got lucky probably...
I wonder...for those of you who can't sleep on an airliner, are you a side sleeper?
or those of you who can sleep on a plane sitting up, are you a back sleeper?