I vote for bringing that pillow - I always do. I'm a feather pillow woman, so then use the pillow at hotels that don't have feather pillows. It makes such a difference.

I also bought a little "U" shaped neck pillow that blows up in a few breaths and has a very soft cover from Brookstone. That has made a difference in trying to sleep too, especially if the seat type has no neck support. Since your 5'2", the seat won't have neck support for you.

When I first starting doing this I felt "goofy", but who was smiling when the other folks on the plane were doing shoulder and neck exercises 5+ hours later coming off the plane.

Comfort....comfort....comfort.