Infants sleeping with vigorous writhing, grunting and red face means that infants are not sleeping soundly, usually related to poor sleep environment, improper feeding before sleep, bad habits, urination, vitamin D deficiency, etc. The main reason 1, poor sleep environment: infants in the environment is too noisy, room temperature is too hot or too cool, there are mosquito bites, bedroom light is too strong, causing infants to sleep unsteadily, there will be writhing, grunting, red face reaction; 2, sleep before eating improper: infants will sleep unsteadily when the state of hunger before bed. If overfed, resulting in increased intestinal burden, causing abdominal pain, bloating and other indigestion symptoms, infants will also sleep unsteadily; 3, bad habits: infants overexcited before bedtime, irregular bedtime, sleep like to hold a pacifier, may appear to sleep unsteadily, twisting, grunting, red face performance; 4, urination impact: sleep with the intention of urination, or due to diaper wrapped too tightly, causing Infants are uncomfortable and their faces are red, and they also express their discomfort by twisting and grunting; 5, vitamin D deficiency: infants lack vitamin D and have increased excitability of the cerebral cortex, which can cause symptoms of sleeping and twisting, grunting, and red faces; 6, other diseases: if the limbs are uncoordinated when twisting, there may be brain damage and other diseases that make physical activity impaired. Treatment 1, parents should pay attention to the bedroom where the baby sleeps to keep quiet, pay attention to air circulation, moderate room temperature, do not cover the baby too thick quilt, wear too many clothes. At the same time, if the size of the diaper is not suitable, or there is urine inside, parents are advised to change it in time to reduce the baby’s discomfort; 2, before bedtime, give the baby to drink an appropriate amount of milk, listen to music, can help promote sleep; 3, can be under the guidance of the doctor to give the baby oral cod liver oil to supplement vitamin D, you can also take the baby out in the sun, the skin through exposure to ultraviolet radiation, to promote vitamin D production; 4. If there is brain damage and other diseases, it is recommended to seek medical advice in a timely manner, and follow the doctor’s instructions for targeted treatment. When the infant’s writhing, grunting and red face are not relieved after improving the sleep environment and sleep habits, it is necessary to seek medical attention to check whether there is any disease.