Pillow, a sleep tool. It is generally believed that pillows are the stuffing that people use to sleep comfortably. According to modern medical research, the spine of the human body is a straight line when viewed from the front, but a curve with four physiological curves when viewed from the side. In order to protect the normal physiological curvature of the neck and maintain normal physiological activities during sleep, pillows must be used when sleeping. Pillows generally consist of a pillow core and a pillowcase. The filling material determines the softness and effectiveness of the pillow. At present, it is more popular to choose natural materials, such as kapok, cattail velvet, buckwheat husk, cotton, flowers, etc., and good natural physiotherapy materials can also be added to increase the efficacy of the pillow, such as Chinese incense, lavender, yellow bud, apocynum, privet, Ginkgo biloba, etc. You can choose more than 10 different basic fillers and more than 40 kinds of composite fillers, so that the pillow has different elasticity, hardness and natural effect, allowing customers to choose a suitable one. According to different filling materials, pillows can also be divided into three categories: soft pillows, hard pillows and neutral pillows, which are convenient for customers to choose. Fast-forward to dreamland.