Newborns generally low cortical excitability, easily fatigued, in addition to feeding, urination and defecation are in a sleep state, waking time of only 2 to 3 hours a day and night, if the newborn sleep is not solid, should be from the following aspects to find the cause: 1, the environment temperature: newborn room temperature is maintained at 20 ~ 22 ℃ is appropriate, the temperature is too high or too low, will cause discomfort to newborns, the package should not be too thin or too thick, because Newborn baby thermoregulation center function is not perfect, body temperature is easy to fluctuate with the environmental temperature changes. 2, reasonable feeding: If breast milk secretion is not enough, do not overemphasize the regular feeding, should be fed according to the needs of the baby, such as breast milk is really not enough to feed a small amount of formula, lactation, do not feed too often, a feeding of the amount of milk not too much, causing vomiting or indigestion, will also make the newborn uncomfortable, sleep is not solid. 3, whether wet: careful observation of the newborn armpit, perineum and other skin folds whether there is erosion, after each change of diapers, especially after stool, to wash the buttocks with warm water, with a soft towel dipped dry, to prevent the formation of diaper rash. If the newborn is not accompanied by violent crying or other symptoms, after finding the cause and lifting it, the newborn will generally sleep more peacefully and parents need not worry too much.