“Even so, the risk of SIDS can be greatly reduced. Most important: babies younger than 1 year old should be placed on their backs to sleep — never facedown on their stomachs or on their sides. Sleeping on the stomach or side increases the risk for SIDS.  When considering which babies could be most at risk, no single thing is likely to cause a SIDS death. Rather, several risk factors might combine to cause an at-risk infant to die of SIDS.”

Kids Health (kidshealth.org)