I love the way these fit my plush king pillows thanks to being open ended. I find I sleep better without friction against the pillow, and my skin benefits from resting or gliding on silky fabric as well. At first I thought it was a shame that both sides weren’t silky, but then realized the other side was designed for your pillow to stay in place and not slide around. I have nothing bad to say about these, I love them! I plan to take one with me when I travel, too, for hygiene concerns with hotel pillows and improved sleep.