The baby sleeps lightly and wakes up easily when there is movement, considering that it is related to vitamin D deficiency or calcium deficiency. Vitamin D deficiency and calcium deficiency will cause increased nerve excitability, the child has sleep disturbance, easy to wake up, excessive sweating, occipital baldness, rib edge ectropion and other symptoms, you can give the child a laboratory test of micronutrients and 25 hydroxyvitamin D content, to see whether there is a lack of calcium and vitamin D deficiency. If there is a deficiency of both, symptomatic treatment can be, usually let the child more sunshine, nutrition should be balanced. In addition, the sleep environment is also very important, the bedroom and the surrounding environment should be kept quiet, do not have light, heat and other adverse stimuli, is conducive to the baby quietly fall asleep.