Babies moving around in their sleep may be caused by ADHD, itchy skin, imperfect development of the nervous system and other reasons. 1. Hyperactivity disorder: the occurrence of its disease may be related to heredity, abnormalities of the nervous system, family growth atmosphere, daily life environment and other reasons. Babies may appear to move around in their sleep, and may also have more small movements and talk more. 2. Itchy skin: When there are too many mites in the quilt and bedding, the baby may have an allergic reaction, which may lead to itching. Babies like to move around and rub the itchy places to relieve itching. 3. Imperfect development of the nervous system: due to the rapid growth and development of the baby, and the development of the nervous system is not perfect, so the external stimulus is easy to react to the generalization, which is easy to appear in the sleep to move around. It is recommended that babies who move around in their sleep go to the hospital in time and follow the doctor’s instructions for treatment to avoid delays.