I bought the Casper mattress protector to protect my Casper mattress (that's a mouthful!). I like it, mostly because it feels like it isn't there. There isn't a comfort difference between sleeping directly on the mattress, or with the protector. We're far away from those plasticky feeling protectors, which is a good thing.

There are ways it could be improved however. It's a wrap-around protector and it feels slightly too big as if they made a generic protector for any mattress. I would prefer it if it was a bit more snug, and if it would enclose the mattress completely, closing the protector with a zipper (similar to SafeRest protectors).

I'm however satisfied with it and will keep it!