Lying down with dizziness and weightlessness can be seen in physiological factors, may also be caused by Meniere’s disease, cervical spondylosis, otoliths, etc., the patient should consult a doctor in a timely manner to clarify the cause of the disease after treatment. 1. Physiological conditions: prolonged late night, poor sleep quality, mental stress can cause dizziness with weightlessness lying down, such people should maintain adequate sleep, appropriate physical exercise. 2. Ménière’s disease: auricular vertigo disease characterized by fluid in the membrane labyrinth, patients will have dizziness and weightlessness while lying down, hearing loss, tinnitus and other symptoms. 3. Cervical spondylosis: when degenerative cervical spine lesions compress the nerves and blood vessels and other tissues, patients may have neck and shoulder pain, dizziness and weightlessness when lying down. 4. Otolithiasis: Dizziness may occur when the patient’s head changes position, accompanied by nystagmus, nausea and vomiting, weightlessness and other phenomena, which can be reset under the guidance of a doctor. Lying dizziness with weightlessness may also be caused by other factors, it is recommended that patients seek medical attention in a timely manner, under the guidance of the doctor to clarify the causes, targeted treatment.