It is normal for a 6 month old baby to sleep about 13-16 hours a day. A 6-month-old baby sleeps about 13-16 hours a day to meet the baby’s sleep needs. When babies get enough sleep, they will secrete a lot of growth hormone, which is conducive to their growth and development. If the baby does not have enough sleep, there will be emotional instability, restlessness and crying, lack of concentration, slow reaction, etc. Prolonged sleep deprivation will reduce the baby’s immunity, thus causing a variety of diseases. In order to baby good sleep, parents pay attention to adjust the environmental temperature, light, etc., parents are not recommended to hold the baby to sleep, so that the baby will form a dependency, in the arms of the parents to sleep is often due to poor posture and affect the quality of sleep, to guide the baby to fall asleep in the bed and so on.