Babies who sleep at night with a grumbling and writhing may be sleep-deficient due to vitamin D or calcium deficiency, and can be examined for trace elements of calcium and vitamin D. Calcium gluconate oral solution can be taken orally together with vitamin D. At the same time, more sunlight must be given during the day to help the skin synthesize vitamin D, which is more conducive to calcium absorption. The child’s sleeping humming phenomenon at night can be relieved. Secondly, parents may give their babies too much food within one hour before bedtime, or go to sleep immediately after drinking milk, so babies are prone to gastrointestinal indigestion, bloating and discomfort, so when they go to sleep, they will have the phenomenon of grunting. Parents should pay attention to the fact that infants should eat as little as possible within one hour before bedtime, while avoiding falling asleep immediately after drinking, they can properly rub their abdomen clockwise with their belly button as the center, which can relieve the phenomenon of bloating, and the phenomenon of infant grunting can be relieved.