The symptoms of dizziness during sleep are mainly caused by central vertigo and peripheral vertigo, and the common diseases are: 1. cerebral artery insufficiency of blood supply: the basal metabolic rate slows down during sleep, blood pressure is low, and if the blood lipids are usually viscous it can lead to slower blood flow, causing symptoms of cerebral artery insufficiency of blood supply and episodes of dizziness. 2. cervical spine disease: if there is usually cervical spine disease, sleep posture is not 3, vertigo syndrome: such as otoliths, otitis media, Meniere’s syndrome, etc. can cause dizziness and other uncomfortable symptoms, and the symptoms of dizziness are aggravated after changing the position. Usually, you should eat lightly and exercise properly. It is better to check blood lipids and blood pressure at the hospital to further confirm the diagnosis when symptoms of dizziness appear.