The My Pillow patented protuberant adjustable support system, which keeps the cervical nerves straight and supported through the night, he was able to sleep comfortably and stay sleeping. This is why people can sleep through the night in one position and get the valuable REM sleep they need instead of flip-flopping or waking up and coming out of REM sleep. Discover the most comfortable pillow you'll ever own. Experience the difference of genuine, comfortable sleep. My Pillow® features a patented medical fill that stays cool while conforming to your individual needs regardless of sleep position. Other pillows become flat over time while My Pillow® stays firm. Finally enjoy the lasting energy that comes from uninterrupted sleep only offered by My Pillow®. Help ease the vertebrae in your neck for reduced strain on your nerves that support your arms, torso, and legs. Healthy natural sleep can help diminish migraines, sleep apnea and snoring. Dust mite resistant, non-allergenic and anti-microbial. Machine washable. Made of open cell polyurethane foam, cotton.