Dizziness that occurs when the body is lying down is caused by positional vertigo, which can also be caused by Meniere’s syndrome or otitis media. Positional vertigo, commonly known as otoliths, is caused by the inconsistency between the inner ear otoliths and the lymphatic circulation in the inner ear, and may also be triggered by the sensitivity to gravitational stimulation, which mostly manifests as vertigo and vomiting when the body position is changed. Meniere’s syndrome is caused by inflammation of the inner ear, which also affects the normal function of the nerves. Otitis media is an inflammatory lesion of part of the middle ear structure, which can affect hearing and normal nerve sensitivity and cause dizziness. It can also be caused by cervical spondylosis, which is caused by the different degrees of compression of the vertebral artery by the cervical spine when the body is in different positions.