Expertly designed for side sleepers, the Comfort Necessities Knee Comfort Pillow offers enhanced support for a more peaceful night's sleep. Featuring TheraGel premium gel memory foam, this pillow helps maintain spinal alignment and can help reduce knee and lower back pain. Removable cool-to-the-touch cover is machine-washable for easy care. TheraGel and Comfort Necessities are trademarks of Carpenter Co.