Newborns do not sleep all the time open eyes and do not make noise, usually normal, mostly due to physiological factors, such as poor sleep environment, etc., may also be caused by diseases, such as calcium deficiency. 1. Poor sleep environment: if the indoor noise, too bright lights, uncomfortable bed, dry air, indoor temperature is too hot or too cold, more excited before going to bed and so on will lead to this situation. It is normal. Newborns are easily aroused, so keep the sleeping environment quiet, the light is not too bright, the bed should be made as comfortable as possible, keep the room at the right temperature, do not tease the newborn to play before bedtime and so on. 2. Day and night sleep reversal: the central nervous system of the newborn is not well developed, so for the day or night is not very sensitive, if the daytime sleep more, then the night may not sleep, parents should be reasonable to arrange the newborn’s bedtime. 3. Calcium deficiency: newborns are more prone to calcium deficiency, so that the body electrolyte disorders, and thus this symptom or poor mental state. Take your newborn to the sun more often, under the guidance of the doctor to give your newborn calcium, vitamin D supplement. Note: If there are other symptoms appear, must go to the hospital in time, so as not to delay treatment.