We tried out the mid-density Edition—the pillow also is available in a “hi” height that contains one block of memory foam as well as a “lo” Model with thinner layers inside—as well as foam was business but spongy, so our heads and necks ended up cradled but didn’t sink. https://zenfluffbestmemoryfoampil85059.thezenweb.com/the-ultimate-guide-to-zenfluff-ortho-neck-pillow-68963676