MOGU Mogu Powder Beads Pillow The unevenness in the center of the pillow fits the hollows of the neck and shoulders! It fills the gaps, reducing the burden during sleep. You can adjust the height and firmness to your liking using the included urethane sheet♪ This is one of the pillows I tried because I was a pillow refugee. It's a popular product. I bought it because it felt good at a chiropractic clinic, and after trying it once, it wasn't quite right, so I decided to let it go. When I used it, I used my own cover, so it's almost new. Thanks to that, I was able to find another pillow that suits me, so I'm selling this one!! Beads pillow, stiff shoulders, stiff neck, snoring, turning over, burden reduction, height adjustment, with sheet, high, low, pressure distribution, relaxation