The English equivalent of Sleep consultant or Sleep coach provides services for adults, teenagers, pregnant women, families and babies, and provides support, information, explanations and resources according to customers' needs to help solve sleep-related problems. What I'm talking about here is babies. Many families have different degrees of sleep disorders, and some studies show that the proportion may be around 20%-30%. Parents have limited access to information, reading books to find solutions takes time, and opinions between different books often conflict. However, turning to front-line pediatricians and child care doctors can't get very detailed personal solutions, and some details related to sleep may not be in the education system of ordinary doctors. Therefore, the existence of sleep counselors is necessary and reasonable.