The baby sleeps at night sweating more, the body cool ice, mostly belong to the normal situation. Because the baby’s body temperature center is not fully developed, the night body temperature rises, improve metabolism, there will be increased sweating phenomenon, sweating away from the body surface temperature, the skin temperature drops, is a normal physiological phenomenon. Parents should pay attention to the child’s warmth, do not give the child blowing air conditioning, or exposed to the natural wind. If the baby is accompanied by symptoms such as crying, teeth grinding at night, and reluctance to eat, consider that the baby is deficient in calcium. Parents can take the baby to the local hospital for trace element measurement, and can give the baby calcium medication and vitamin AD drops at the same time. Sunlight has a very good effect of calcium, parents can also take the child more sunshine.