I'm much happier since I figured out how to adjust these. The easiest way is to get in the back seat and push forwards on the bottom of the headrest towards the steering wheel. It doesn't tilt like you might think, but rather it shifts forward and back. It ratchets forward and after the most forward position it comes back to the rearmost position. There are three settings:
1) Just a tiny bit too far forward, but manageable.
2) Too far forward.
3) Way too far forward to the point of causing pain.
Mine was in position 3. Now it's in position 1 and it's a night and day difference.