SIDS is the sudden, unexplained death of an infant younger than 1 year old.
It is the leading cause of death in children between 1 month and 1 year of age. Although there is no sure way to prevent SIDS, parents and caregivers can reduce the risk for SIDS.
SIDS is the sudden, unexplained death of an infant younger than 1 year of age that remains unexplained after a complete investigation.
How many infants die from SIDS or are at risk for SIDS?
Data from the CDC show that 1,545 infants died from SIDS in 2014 (the most recent year for which data are available).
What causes SIDS?
Health care providers and researchers don’t know the exact cause, but there are several theories.
How can I reduce baby's risk of SIDS?
Parents and caregivers can reduce the risk of SIDS by placing infants on their backs to sleep, creating a safe sleep environment, and taking other actions.
NICHD SIDS Research Information
NICHD is the primary federal resource for research on SIDS.
Find a Study
Find a Study on SIDS
NICHD conducts and supports a variety of clinical research projects related to SIDS.
Other SIDS FAQs
Find answers to other common questions about SIDS risk reduction and about finding support for those who have lost an infant.
Links to websites of groups that study and provide information about SIDS and infant loss.