An 8-year-old child who is not sleeping well may usually have trouble sleeping by always turning over, having difficulty falling asleep, and sleeping unconsciously, which can be adjusted in the following ways: i. An 8-year-old child when deficient in vitamin D as well as calcium can also affect the quality of the child’s sleep. To carry out a daily vitamin D requirement routine supplementation, 400 units per day for supplementation. At the same time to carry out about pediatric calcium supplements, you can take oral DiQiao calcium carbonate granules, etc., in favor of the child’s calcium absorption. Second, you can appropriately increase the amount of children’s daytime activities, activities are not just play, you can be one hour after dinner, or 2 hours before going to bed for bouncing type of physical activity, such as jumping rope can be carried out every day for about 30 minutes, not only conducive to growth, but also allow the child to increase the amount of activity, but also conducive to the improvement of the quality of sleep. Every night before going to bed, children can be given back spinal points of chiropractic, every night before going to bed repeatedly 6-8 times of chiropractic, continuous for about 1 week can significantly improve the sleep of children.