What is a bed pillow? A bed pillow refers to a pillow used to support the head and neck when sleeping on the bed and is a sleep tool. Bed pillows are the stuffing people use to sleep comfortably. According to modern medical research, the human spine is a straight line when viewed from the front, and a curve with four physiological curvatures when viewed from the side. In order to protect the normal physiological curvature of the neck and maintain normal physiological activities when sleeping, bed pillows must be used when sleeping. Bed pillows generally consist of a pillow core and a pillowcase. What kind of functional pillow is the bed pillow? Bed pillows are divided into health care pillows, therapeutic pillows, and decorative bed pillows according to their actual functional effects. From the material of the bed pillow core, it is divided into buckwheat pillow, latex pillow, memory foam pillow, down pillow, kapok pillow, gel pillow, chemical fiber pillow, etc. How do maintain the quality of bed pillows? Most of the common bed pillows on the market are filled with latex, memory foam, plants, cotton, plush, etc. These bed pillows are easily deformed after a long time, and their elasticity is also deteriorated, which cannot support a normal human body that bends. Usually, you can try folding the pillow in half and then loosening it. If the bed pillow springs back to its original shape immediately, and the pillow core has no obvious creases, it means it is intact; if the pillow rebounds slowly or easily leave creases, it means that the elasticity is poor, and it is not even suitable for use on the head and neck. It will affect sleep and bone health, causing insomnia, stiff neck, cervical spondylosis, etc. Clean it once a month. Depending on the material of the bed and pillow, it can be washed, sunbaked, ventilated, and dried. For example, memory foam pillows, and detachable pillowcases are washed and dried, but pillow cores cannot be washed and dried. Store in a ventilated and dry place. How long do the bed pillows last? 1. The memory foam pillow has slow rebound and stability, the bed pillow is not easy to deform, has good air permeability, and has a smooth surface. Concealed insects can not adhere to survive, the use period of 1--3 years. 2. Plant-filled bed pillows and lovely tea scents can be relaxing. The period of use is about 1 year to 1 year and a half. 3. The bed pillows filled with animal fibers are fluffy and breathable, but not suitable for people with allergies or those who are prone to sweating. Down will form a ball when it comes into contact with water. The general life cycle is 1-2 years. 4. Bed pillows are composed of cheap man-made fibers, which are easy to agglomerate under heavy pressure for a long time. It is recommended to sterilize in the sun once a month and replace it every three months or when the pillow becomes hard. When buying bed pillows, pay attention to the density of the pillow core. The higher the density, the less likely it will be deformed and the less likely the head will sink when the bed pillow is placed on it, which can provide enough support for the head and neck and feel more comfortable.