We only bought ONE pillow so my husband and I could each have turns trying it. We both like the way it keeps it's shape/volume and the way it snuggles our neck (mine is long, his is not.) We even brought it on a 2-week vacation so we could continue our "test" of it's comfort!
Unfortunately this pillow did not work for me (side sleeper). I slept with it one night and slept so wrong I was sore & achy for a few days. I had to try & fold it in half to give me proper support. Try it if you want, but I'm returning mine.
I've been on a long and devoted search for the perfect pillow. I've tried numerous foam and ergonomic pillows, as well as specially shaped or stuffed pillows--all have while tossing and turning persisted, leaving my neck and back really uncomfortable. I have no such issues with the Casper pillow. It's always perfectly shaped and supportive for my neck no matter what side I sleep on.