Core Memory Foam Cervical Orthopedic Pillow : Premium 100% viscoelastic memory foam is a mark of high quality seen in only the best memory foam pillows. It responds better to body heat, to conform to the unique shape of your head and neck for soft comfort and stabilize existing neck conditions. Its gentle support makes it ideal for use during the first stage of care in our TriCare Circle of Health, the Accommodate stage. http://www.coreproducts.com/cj/asp_catalog/catalog.asp?pca=284 It is also an excellent choice to help alleviate tension headaches, neck muscle and joint sprains and strains, ligament sprains and arthritis discomforts. The Mid-Size Core Memory Pillow's 19" x 12" (48 cm x 30 cm) surface, proportioned for adults and teens, lends added comfort, while two neck lobes - 3" and 4" high - allow you to further customize the level of support. The removable soft, plush pillowcase, promotes soothing rest. Discuss with your physician and decide which one is right for you. And begin enjoying the comfort you crave.