The reasons for children waking up after falling asleep mainly include the following: 1, caused by children’s sleep is not deep, if children have just fallen asleep, not into a deep sleep period, this time children will wake up as soon as they are put to bed, and will disappear after the children slowly fall asleep. 2, caused by children suffering from bad habits, if parents often hold children to sleep, children will adapt to the position of holding, being put on the bed will often feel different. The child will often feel different when put to bed, thus causing the child to wake up when put to bed, parents should gradually abandon the bad habit of holding the child to sleep. 3, if the child has abdominal pain, cough, etc., will often cause increased neurosensitivity, resulting in the situation of waking up when put to sleep, and will disappear after the child’s disease has improved.