Baby sleep sweat back is cool may be physiological factors, may also lack of vitamin D caused by the common treatment: such as can adjust the indoor temperature, baby sleep wear breathable clothes, if necessary, application of medication and so on. 1. Physiological factors: the baby sleep environment temperature is too hot or sleep with too much clothing will cause the baby sleep sweating back is cool, it is recommended that sweating can be appropriate to reduce the amount of clothing, while adjusting the indoor temperature, the baby sleeps in breathable clothes, to avoid the baby sweating. 2. lack of vitamin D: if the baby vitamin D deficiency, will lead to disorders of calcium and phosphorus metabolism, easy to let the baby sympathetic excitability increase, sleep is also more prone to sweating, can be under the guidance of the doctor to comply with the doctor’s orders to supplement the vitamin D treatment. Clinical cause of the baby sleep sweating, back cold more reasons, such as the baby nightmares can also lead to a similar performance, therefore, the environment and other factors to improve, the baby still sleep sweating back cold, it is recommended to consult a doctor in a timely manner, in accordance with the doctor’s instructions to be targeted treatment.