Infants’ squirming may be related to poor indoor environment, lack of calcium, hunger, flatulence and other factors, which are analyzed as follows: 1. Poor indoor environment: infants who live in a stuffy or cold environment will cause restless sleep and wriggling, and the above symptoms will disappear after changing the indoor environment. 2. Calcium deficiency: infants with calcium deficiency will also have such symptoms, accompanied by excessive sweating, night terrors, occipital baldness and other symptoms. 3. Hungry: Parents do not feed their babies enough before they go to bed, which may cause them to look for milk during sleep. 4. Intestinal flatulence: Infants who have the above conditions for a long time and are also accompanied by bloating, milk overflow and other adverse reactions may be related to intestinal flatulence. There may be other reasons for babies to sleep around, it is recommended to go to the hospital in time for relevant examinations, clear causes and then actively treat the symptoms.