The length of sleep for babies is individual and varies from person to person. Some babies sleep more than ten hours a day, while others have relatively short sleep, but if they are in good spirits and have high energy levels, there is no need to worry. If the baby sleeps too little, it will cause the baby sleep deficiency and affect its growth and development, you need to pay attention to observe, and at the same time to establish a regular routine for the baby. 1, if it is a calcium deficiency will cause the child sleep restlessness, easy to panic, you need to give your baby vitamin D supplements under the guidance of the doctor, more outdoor activities with your baby, more sunshine, and appropriate calcium supplements if necessary. 2, cultivate good sleep habits, do not sleep too much during the day, to increase the child’s activity, the child will sleep peacefully at night, do not let the child be frightened or too excited before going to bed. To train the child to distinguish between day and night habits, do not light up all night, to let the child know that the darkness will have to sleep. 3, reasonable feeding: do not let the baby hungry or fed too much, a reasonable mix of diet can also ensure good sleep, do not let the baby sleep with the nipple, or to develop the habit of holding to sleep. The quality of sleep is an important signal of the physical and mental health of the baby, the length of sleep depends most on whether it affects his growth and development, if the baby develops normally, parents do not need to bother about the length of sleep.