Anyone used or seen one of these?
What do you think?
I don't either ... but mostly as a result of cramped leg conditions, rather than in the pillow region.
If that thing does cover your entire face, then I would find it literally suffocating. A simple eye mask is irritating enough for me.
Have a couple Martinis before you get on the plane. I find it easier to sleep when I am higher than the plane.

I think the world is divided into two different kinds of people: those who can sleep on planes and those who can't.
I doubt that there's any commercial product that's going to change that.
Even if it comes in a bottle.
Lord knows I've tried....
Besides, the pilot needs my positive energy flowing through and around the cockpit.
The computers need it too. And if they don't get it, they don't like it.
But they always get it from me.
You're welcome, fellow sleeping passengers. Slackers.