Waking up in the morning with dizziness and sweating may be caused by physiological reasons, or it may be the manifestation of many diseases, such as otolithiasis, vertebral artery cervical spondylosis, posterior circulation transient ischemic attack, and so on. 1. Physiological reasons: when the human body suddenly sits up from a lying position, the blood can not return to the brain in time, which may lead to insufficient blood supply to the brain, causing dizziness in the morning, cold sweat symptoms. 2. Otolithiasis: clinically known as benign positional vertigo. Otoliths are dislodged due to trauma, structural degeneration, etc. When the head position changes while lying down, the dislodged otolith fragments may migrate to the balance structures such as semicircular canals and the crest cap of the jugular ridge, thus inducing vertigo. 3. Vertebral artery-type cervical spondylosis: this disease is related to degenerative changes of the cervical spine. Poor sleeping posture and changing head position when getting up may lead to vertebral artery compression, thus causing insufficient blood supply to the brain and vertigo and other symptoms. 4. Transient ischemic attack: This disease mainly refers to transient cerebral ischemia caused by intracranial atherosclerosis and other vascular diseases. At the onset of the attack, there are symptoms such as dizziness, nausea, vomiting, unsteadiness and cold sweat. There are many reasons why you wake up in the morning with dizziness and sweating, so it is recommended that you go to the hospital in time for standardized treatment for the cause of the disease.