How is copper in Layla Pillow cover beneficial? Layla January 23, 2019 02:30 Updated Follow The CuTEC® fibers woven into the Layla Pillow cover act as an antimicrobial germ slayer that works to help reduce odor and improve hygiene keeping your pillow fresh and clean. Related articles Is Copper in the mattress harmful to my health? How do I return my Layla Pillow? Comments 0 comments Please sign in to leave a comment.