I SO wanted to LOVE my Casper king-sized pillows...after trying his pillow for a week, my husband is no longer using his. I'm using mine, but with another pillow underneath it. The pillows have no support. You basically "sink in" and you're almost level with your mattress. Anyone looking for some elevation and support will not find it with Casper.
I think the pillow is great for back sleepers. I ordered because they said it was good for all sleepers. I sleep on my side. It goes flat quite easily.
I wasn’t able to continue to use the pillow because it’s too flat for me. Even after washing and fluffing it got too flat through the night. I gave it to my husband though, and he likes it.