Specially Designed Sleeping Pillow Uses Convoluted Foam Shaped To Support The Neck And Promote Airflow Special Wedges Inserted Into Each Edge To Provide Cervical Support Regardless Of Which Side You Use 22 X 19 Poly/cotton Blend Cover Included This Pillow Does Not Compare To The Wal-pil-o The Wal-pil-o Is A 4-in-1 Pillow That Has Been Clinically Proven To Help Reduce Pain