2 years old baby sleep tossing and turning clinically very common, caused by the following reasons: 1, common lack of trace elements, calcium deficiency can cause increased excitability of the brain, resulting in the baby sleep unstable at night, need to supplement vitamin B and calcium supplements, while the need for more sunshine; 2, if the child is too excited before going to bed, can also cause this situation; 3, if the indoor temperature is too hot, too cold or If the baby has chronic rhinitis, dry boogers in the nose or frequent nasal congestion, it will also cause this situation; 6, if the child has digestive problems, it will also cause this situation, such as accumulation of food, indigestion, roundworms in the stomach, eating too much at night or with fire, etc.. To sum up, there are many reasons that cause babies to toss and turn at night, and the causes need to be found before they can be handled correctly.