It is a bad habit for the patient not to have a pillow while sleeping. Because there is no pillow, the patient’s neck will always be in a state of hyperextension, it will be easy to occur fatigue injury to the muscle groups of the cervical spine, some will also pull the nerve, so that the patient feels pain in the neck, there is a restriction of movement, there will be upper limb skin sensation loss, muscle strength weakening and so on. Therefore, when the patient sleeps, he should choose a pillow of suitable height, most of them can choose low pillow, which can relax the muscle groups in the cervical spine area, reduce the pressure within the local muscles, which can lead to improve the local blood circulation, which can reduce the stimulation and pull on the muscle injury and nerves, so the patient should choose a pillow of suitable height when he sleeps.