The milk that the baby drinks at night after going to sleep is considered to be nighttime milk, and there is no fixed time for nighttime milk. Night milk is the baby woke up at night asked to drink milk, do not drink milk will cry to express, just a few months to drink night milk is a normal performance, this time the baby’s stomach capacity is relatively small, breastfeeding is not the difference between day and night, the baby feels hungry to drink milk. Night milk is not fixed points to points, each baby development is different, the baby fell asleep at night after the request for milk are considered night milk, the baby 5-6 months gradually weaned off the night milk, can not be a long time to feed the night milk. The night feeding time is too long, the night feeding quantity is more, the daytime eating less, the appetite is worse, will affect the supplemental food to add. Prolonged night feeding, the digestive tract will remain in working condition, which may affect sleep. Newborn babies can eat night milk to supplement the nutrients, the baby is older after a long period of breastfeeding, may affect the growth and development.