Babies do not sleep well twisting and turning, may be physiological factors, but also may be indigestion, lack of vitamin D and other causes. 1. Physiological factors: if the baby is located in the environment of high temperature, uncomfortable quilt cover or daytime sleep time is too long. It will lead to the baby sleep not solid twisting around, belong to the normal physiological factors, if the baby is not fully awake can be observed first. 2. Gastrointestinal dysfunction: If the baby’s diet is not appropriate, it will lead to gastrointestinal dysfunction, causing indigestion, which will lead to the baby’s sleepiness and twisting around, accompanied by abdominal distension, abdominal pain, vomiting and other symptoms. 3. lack of vitamin D: baby sleep not solid twisting around may also be caused by a lack of vitamin D, when the baby in addition to the above symptoms, will also be accompanied by night sweats (after falling asleep sweating abnormally, waking up sweating to stop), night terrors, occipital baldness and other manifestations. Babies do not sleep solidly twisting around, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.