Patients with dizziness after a nap, mainly consider the following causes: 1, to consider may be caused by elevated blood pressure, hypertensive patients may be in the early morning or afternoon when there will be a peak in blood pressure, this situation may be related to physiological factors, but also may be related to the improper application of antihypertensive drugs; 2, the patient vomited after the symptoms of dizziness, but also consider may be insufficient blood supply to the brain and other reasons If the patient has frequent episodes of tinnitus, stuffy ears and dizziness in the past, consider Meniere’s disease as well; 4. If the patient is dizzy after a nap, it may be related to the sleeping environment, such as the patient is sleeping on his back, poor air circulation, or the room is stuffy, which may lead to dizziness and lightheadedness after waking up.