When a patient has a headache after lying down at night, the patient may have a neurovascular headache. Most of these headaches are caused by a particularly stressful or stressful daytime job and excessive busyness. If the patient has many recurrent headaches, it is recommended that the patient should have a cervical X-ray to see if the patient has atlantoaxial dislocation of the cervical spine. In addition, if a patient has a headache after lying down for a long time, a head CT examination is necessary to exclude intracranial occupational diseases, hydrocephalus and cerebrovascular diseases, and to exclude vasculitis of the central nervous system. Many patients may have headaches after lying down due to brain diseases.