1 month baby does not sleep much during the day, mostly considered to be the sleep environment is not good, not enough breast milk, lack of calcium and vitamin D and other reasons, you can go to the hospital for a clear diagnosis, common causes and detailed recommendations are as follows: 1, sleep environment is not good: sleep environment during the day is too bright light, indoor noise, including the environment of the humidity, temperature and so on can affect the baby’s quality of sleep, coupled with the baby’s insecurity, which can lead to the 1 month of the It is difficult for babies to fall asleep alone during the day. Suggestions for the baby to create a quiet, comfortable sleep environment, parents in the baby before falling asleep can also be accompanied by sleep; 2, insufficient breast milk: insufficient breast milk is easy to lead to the baby is often hungry, daytime sleep is easy to be woken up by hunger, resulting in a short daytime sleep, it is recommended that the baby can be appropriate to give high-quality formula to ensure that the growth of the needs of the baby; 3, the lack of calcium and vitamin D: lack of calcium and vitamin D is easy to lead to the 1 months Baby excitability, easy to cry, irritability and other phenomena, resulting in reduced daytime sleep, and easy to wake up. Need to improve the micronutrient testing, under the guidance of the doctor appropriate supplemental calcium and vitamin D. Precautions baby 1 month is the first peak of growth and development, must ensure that the baby up to 16 hours of sleep, is conducive to the child’s growth.