Patients appear dizzy when they get up at night, the reasons may be the following: 1. If there is a sleep disorder, when patients take diazepam, clonazepam, dezopiclone, eszopiclone, alprazolam type sleeping pills, patients will appear dizzy when they get up at night because the drug has not been completely metabolized, especially they will feel a feeling of head heavy. 2. If the dizziness occurs when the patient wakes up at night, if it is transient, it is related to the patient getting up too violently. If the patient is usually weak or has hypotension problems, suddenly getting up too violently and the blood pressure is not adjusted in time, it will lead to postural hypotension and cause transient dizziness. 3. If the dizziness occurs when the patient gets up at night, if the dizziness symptoms persist and the drug-related factors are excluded, consider that the patient has If the dizziness persists and medications are excluded, the patient should be considered to have a cerebral blood supply deficiency. It is recommended that the patient improve transcranial Doppler and cervical vascular ultrasound.