Safe sleep means putting an infant to sleep in ways that can help protect him from dangers, like choking and suffocation (not being able to breathe), and sudden infant death syndrome (also called SIDS). SIDS is the unexplained death of a baby younger than 1 year old. SIDS usually happens when a baby is sleeping.  In this microlearning module, you will learn how to put infants down to sleep in a safe way.