Zen Chi Buckwheat Pillow Case 100% 400 Thread Count Premium Pillow Case - Fits All Personal/Japanese Sized Pillows (14" X 20") - Sleep soundly, naturally with the revolutionary Zen Chi pillow. For centuries the Japanese has used home-grown buckwheat hulls to sleep effortlessly and soundly. The Zen Chi Pillow contours to your body to suit your perfect sleeping needs. And, the organic Buckwheat Hulls provide natural cooling comfort to your head and neck. Each buckwheat pillow contains between 4 and 12 lbs of 100% organic buckwheat hulls depending on the size of the pillow. The Zen Chi Pillow is backed by our 100% satisfaction Guarantee. If you are not 100% satisfied with your purchase we will take it back, no questions asked. There are many brands out there, but none is like the Zen Chi Pillow. Don't let the reasonable pricing fool you. The Zen Chi Pillow uses 100% Organic grown buckwheat hulls and will change the way you think of sleep.