To choose the right pillow, we must first understand the correct pillow method. Although it is said to be a "pillow", the "pillow neck" is actually correct. It should be the neck between the back of the head and the shoulder, which supports the neck when sleeping. When supine, the highest point of the pillow should be in the middle of the back of the neck to support the curvature of the neck and maintain the physiological curvature of the neck. The lowest point of the pillow is the back of the head; when lying on the side, the pillow supports the neck side. The principle of being able to keep the spine in a straight line on a straight line and the normal S-shape (in accordance with the physiological curve) from the side. The shape of the health pillow is more in line with the physiological curve of the human body. The pillow fits the cervical vertebrae well during sleep and supports the cervical spine. It is more suitable for people who like to lie on their backs.
material
At present, pillows are filled with various materials, such as chemical fiber, latex, down, and buckwheat hull ... Different materials have different rebound times, and the better rebound time is 3-5 seconds. Pillows have a lifespan, ranging from half a year to three years, and problems such as loss of elasticity, aging, and mites will occur after a long time of use. Among them, chemical fiber pillows are the most common, but not very breathable, especially after being used for a few months, they are easily compacted and deformed. The more they sleep, the flatter they will no longer be elastic, so they need to be replaced in time. The down pillow is relatively soft and comfortable to sleep, but it is difficult to maintain a certain height. It is recommended to use it with a harder pillow.