It is usually best for 6-month-old babies to go to bed at 7:00 to 8:00 p.m. at night, but the exact sleeping time is not fixed, and can be measured according to the child’s physical condition and biological clock. It is better for 6-month-olds to go to bed around 7 pm and wake up around 7 am. The optimal stage of growth hormone release is from 9:00 p.m. to 1:00 a.m., when the most growth hormone is released. During this time period, the child enters into a state of deep sleep, which helps the secretion of growth hormone. Growth hormone secretion will enter into a peak again at around 6:00 a.m. Therefore, ensuring sufficient sleep and good sleep quality can promote the child’s physical development. It is better for 6-month-old babies to go to bed at night at 7 to 8 p.m. There may be a difference in the sleeping time of each child, but it is important to pay attention to not letting the child go to bed too late, which will easily affect the secretion of growth hormone.