The reason why sleeping on the table will be dizzy, may be related to bad rest, may also be due to cervical spondylosis, insufficient blood supply to the brain and other reasons. 1. bad rest: lying on the table to sleep, easy to cause bad rest, resulting in the brain can not get enough rest, may cause dizziness phenomenon. 2. Cervical spondylosis: If there is a history of cervical spondylosis, these patients, if they sleep on the table, because of the neck for a long time to maintain an inappropriate posture, which is likely to lead to vertebral artery pressure, resulting in the vertebral basilar artery blood supply is insufficient, which may cause dizziness. 3. Insufficient blood supply to the brain: If the indoor air circulation is not good, coupled with lying on the table to sleep, long time to maintain the improper posture, easy to lead to the brain relative ischemia and lack of oxygen, may cause dizziness, may also be accompanied by headache, weakness and other symptoms. Sleeping on the table will be dizzy, but also for other reasons, if the symptoms continue to be unable to improve, should seek medical attention as soon as possible, clear triggers after giving targeted treatment.