The baby is always tossing and turning in his sleep, it may be physiological factors, but also may be caused by vitamin D deficiency, indigestion and other pathological factors. 1. Physiological factors: the baby is too excited before bedtime, or the environment is hot, etc., can lead to the baby is always tossing and turning. 2. Vitamin D deficiency: this is a common cause of babies always tossing and turning in their sleep, usually accompanied by night sweats, night terrors, crying, jumping and other symptoms. 3. indigestion: baby gastrointestinal function is weak, gastrointestinal tract development is incomplete, the slightest carelessness will easily cause indigestion, resulting in bloating, is also one of the causes of baby sleep is always tossing and turning. The baby is always tossing and turning in his sleep, there are other reasons, it is recommended that if you exclude physiological factors, you should consult a doctor in time to find the cause, and if necessary, cooperate with the doctor’s treatment.