Babies can sleep on their backs because this sleeping position is more conducive to the relaxation of the baby’s whole body muscles, and the pressure on the baby’s body will be relatively less.
When the baby sleeps, it is recommended to lie on the back position, but because the baby’s stomach is horizontal, so after eating milk may be easy to overflow, it is recommended that after the baby has finished eating milk you can first put the baby on the side, and wait for the baby to sleep half an hour to an hour and then put it on the flat side, to prevent overflow of milk inhaled into the baby’s trachea, resulting in choking.
It should be noted that if the baby has a cold, nasal congestion, cough and other adverse symptoms, it is recommended that the side of the baby to lie down, because lying on the back may lead to the baby’s breathing is not good.