When lying down, you get dizzy occasionally. What's going on?

Occasional dizziness when lying down may be related to hypoglycemia, you can drink some sugar water to relieve symptoms; it may also be related to orthostatic hypotension, usually get up, lie down slowly; in addition, it may be related to cervical spondylosis, benign paroxysmal positional vertigo, Meniere's syndrome, otolith disease, etc.