It happens all the time: you go on a trip, and you end up wanting to pack something in your pillowcase....something that just really doesn't fit in your bag, like your PJs, or a light blanket, or your stuffed friend...SO you stuff them in your pillowcase, only to have them trying to pop out at all the wrong times!
NO MORE, I declared a couple of trips ago...then it took me a trip to decide that I could indeed do something about it (also having to decide that it was okay to alter my favorite case, and have time to sew a NEW one), and another to figure out how. SO all that said, before the last trip (to visit that cute baby on the left), I had the zipper installed, and it was WONDERFUL.
I think that parents would want these for their children: you know the road-tripping-slumber-partying-gone-to-sleep-at-the-grandparents kind of children... (like me).
The zipper just hides, you don't know it is there, and is quite handy! =)