These pillow protectors are great with my new feather pillows that I purchased from Overstock and I also used them on my "old" pillows. If you want to care for your pillows other than just a piloow case, I would recommed these for all bed pillows.
I was looking for a set of pillow protectors and these fit the bill as far as the price. I'd give it 5 stars but reduced it to 4 because the zipper pull is a little long and it pokes out a bit. Enough where I feel in through my actual 600tc pillowcases. To prevent them from poking me in the face, I have to make sure that the zippered part is at the very bottom where there will be some taming them as opposed to having them at the open end. I looked elsewhere for pillow protectors without zipper closure, but could not find any. Oh well, for the price, its worth dealing with.
There is nothing worse than watching pillows start to turn yellow and to this day I have never figured out why they do this, however; I am prone to believe now it must be body oils that get into the pillows and makes this process of turning yellow begin. Since I have covered all of the pillows I have not one yellow pillow, plus the shape of the pillow stays better and cleaning just that protector is better than washing one pillow at a time in the washer. I can do all of the covers in one load. Never thought anything about things such as this but in the end it saves me time, money, electric and water so it seems I should have thought more about it.
I hesitated to buy the poly/cotton blend, but I'm glad I did. Like other reviewers say, they don't wrinkle as badly as 100% cotton and they feel really soft. Since these go on under a pillowcase, they do the job beautifully. Great deal!