One year old baby sleep head sweat may be physiological phenomenon, may also be rickets and other diseases caused by. 1. Physiological phenomenon: because the child’s metabolism is relatively vigorous, in addition to the high indoor temperature or clothing cover clothing is too thick, may lead to the child sleep head sweating. 2. Disease: one year old baby sleep head sweating, common in vitamin D deficiency rickets, the child in addition to sleep after sweating more, there will be night sleep, often wake up, and even bone morphology changes and other manifestations. One year old baby sleep head sweat, should promptly take the child to the hospital pediatrics; identify the cause should be under the guidance of the doctor for treatment; usually pay attention to try to keep the sleep environment quiet, indoor temperature is appropriate, and so on.