Sweating in infants is considered to be a physiological factor, while pathological factors, such as calcium deficiency and anemia, cannot be ruled out. The metabolism of infants and young children is more vigorous, and when the room temperature is too high, the symptoms of sweating will easily appear, but it will not affect sleep, and most of them appear when they just fall asleep. It is a normal physiological manifestation. Avoid high room temperature and too much bedding. Calcium deficiency in babies can cause an increase in nervous system excitability, leading to excessive sweating after sleep and easy irritability and crying. Sweating can also be caused by anemia. There may be other reasons for babies to sweat in their sleep, so it is recommended that you go to the hospital in time for a complete examination to determine the cause of the problem, and then give targeted treatment or therapy under the guidance of the doctor.