Will block screen if there are screens on the backs of headrests. Not comfortable on seats that don't recline

The difficulty I had with using these is that you it goes around the entire headrest -- which means that if the seats have video screens on the backs of them, you're going to be obstructing the person's view behind you! So that's not an option. On seats without video screens I did use it, but it was really awkward and my head was held in this straight upright position which actually wasn't that conducive to sleeping. If you're on Spirit or Frontier where the seats don't recline -- really not comfortable unfortunately.

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