It may be normal for full-term babies to stay awake all day long, or it may be abnormal, and must be analyzed according to the specific situation of the baby. Each baby’s sleep habits are different, there are individual differences, the general daily sleep time is about 16-18 hours. If the sleep time is enough, it is understandable that the baby does not sleep during the day. As long as the baby’s spirit is good and the milk is good, there is no big problem. If your baby is not feeling well, he or she may not sleep during the day. For example, if your baby is deficient in vitamin D, he or she will suffer from calcium deficiency, which may lead to poor sleep, sweating, irritability, and waking up easily. It is recommended that you add vitamin AD or vitamin D drops to your baby in order to promote calcium absorption and prevent calcium deficiency. It is recommended that parents of full-term babies who do not sleep all day during the day promptly find out the reasons and take reasonable measures to avoid adverse effects on the growth and development of the baby.