If you ask any chiropractor what kind of pillow they sleep on, the answer will most likely be memory foam, the reason being that this material comfortably supports your head, neck, and shoulders in a natural position, which leads to deeper, more restful sleep. Featuring a memory foam insert, every Sonno Pillow is certified STANDARD 100 by OEKO-TEX, which means you can be certain that every part of it has been tested for harmful substances. Includes removable polyester cover for easy cleaning. Made in Italy.