Children can consider bed-sharing after 3 weeks of age, and bed-sharing is most appropriate around 5 weeks of age. If a child is separated from his or her parents before the age of 3, the child may feel abandoned, thus causing psychological damage, and may lack self-confidence and a sense of security, suspicion gravity and other problems when they grow up. And after the age of 3, the child’s budding sense of independence is rapidly developing, the arrangement of sleeping alone is beneficial to the development of a sense of independence and self-care skills and the development of social adaptability in the future. In addition, children to about 4-5 years old has the first gender awareness, psychological development is at an important stage, if a long time to sleep with parents in the same bed, will lead to a lack of self-discipline, and even the formation of sexual recognition disorders. Separate bed with parents at this time, can reduce the dependence on parents, to create a healthy environment for children to grow up. For children who do not want to sleep in separate rooms, parents should not force them to do so, but can be induced to sleep in separate rooms by means of rewards. When the child is sick or frustrated, you can temporarily sleep with them, and then let them sleep alone after they recover.