Two great uses: Gives massage therapists better access to neck and shoulder muscles, and helps patients relieve tension headaches and neck pain. Patented design helps restore proper neck posture, which may be causing headaches. This cushion is not designed for sleeping. Recommended use is 20-30 minutes a day. Consult your doctor before using this product. High quality, precision-cut foam. Durable cotton/poly cover in selected colors. 21"x11"x7"