Millet pillow and cassia pillow are better than cassia pillow. The pillow of cassia seed has the functions of clearing away heat and improving eyesight, soothing the liver and regulating qi, which is better than the pillow of millet. Cassia pillow has massage effect on cervical vertebra, while Xiaomi pillow will be placed behind the brain spoon, causing pain and discomfort, so Xiaomi pillow and Cassia pillow are better than Cassia pillow.