Rebreathing Theory
When an infant sleeps on their stomach or side, this increases the possibility of the infant rebreathing their own exhaled breath. This is called the Rebreathing Theory. This theory suggests that when an infant is lying face down, air may become trapped around the baby’s nose and mouth, causing the baby to breath more carbon dioxide than oxygen.
Sleeping Position and Choking
Many parents and caregivers express concern that their baby will choke when sleeping on his or her back. Babies have a reflex to keep their airway clear and avoid choking; meaning, they automatically cough up or swallow any fluid or spit up. Evidence has shown that babies are more likely to choke or aspirate when sleeping on their stomach. That’s why back is best!
For more information on safe sleep, visit the Cribs for Kids website.