Patients who are often dizzy and want to sleep may be caused by the following: 1. hypertension: blood pressure should be measured to rule out hypertension. 2. sleep apnea syndrome: it is best to improve sleep breathing monitoring, especially for patients who are obese, usually have rhinitis, and have a thicker and shorter neck. such patients should rule out nocturnal sleep apnea syndrome, especially for patients who snore more seriously, it is recommended to improve this 3. neurological diseases: if you are often dizzy and want to sleep, you should also improve the CT examination or MRI examination of the brain to exclude neurological diseases. 4. weakness: if you are often dizzy and want to sleep, if no disease is found after the above examination, it is also possible that your body is weak.