The core of the pillow is filled with Yizheng chemical fiber, a new type of environmentally friendly fiber. It cleverly combines the shape retention and quick-drying properties of synthetic fibers with the softness and comfort of natural fibers. Upon close observation, the fibers are as fine as silk and do not stick to each other, leaving ample space for air, thus giving the pillow excellent fluffiness. Even under long-term pressure from the head, it will not easily collapse or deform, maintaining a full state. This high level of fluffiness allows the pillow to flexibly change support points according to your sleeping position, whether you are used to sleeping on your side, back, or stomach, it can provide the right support for your cervical spine and spine, effectively alleviating issues such as stiff neck and neck stiffness. It is particularly suitable for elders with cervical spine problems at home.nnThe pillow features a carefully designed分区structure that mimics the curve of the human cervical spine, divided into back sleeping area, side sleeping area, and neck protection area. The central depression in the back sleeping area precisely fits the back of the head, ensuring that when lying flat, the neck will not be suspended, allowing you to wake up in the morning without the discomfort of a sore neck; the side sleeping area is relatively higher on both sides, able to perfectly fill the gap between the shoulders and neck, effectively preventing neck twisting and straining during side sleeping, allowing you to sleep through the night without shoulder soreness; the neck protection area gently rises at the front, like installing a ‘safety airbag’ for the cervical spine, maintaining the natural curvature of the cervical spine throughout your翻身process, comprehensively protecting the health of the cervical spine.nnThe 45×73cm size is moderately sized, suitable for most standard single beds, making it convenient for daily use and replacement. For consumers who are used to using smaller pillows, or those living alone, it is an excellent choice. Its weight design is reasonable, providing good support without causing too much burden on the neck, allowing you to enjoy a comfortable experience during sleep.nnThe 48×74cm size is slightly larger than the 45×73cm, making it more suitable for those who have greater movement during sleep and need a larger range of pillow support. Whether it’s the placement of your arms while sleeping on your side or the movement of your head while turning over, you can find a comfortable position on a pillow of this size. It is also suitable for various types of beds and has wide applicability.