What is the age range that infants get sudden infant death syndrome?

Sudden Infant Death Syndrome (SIDS) primarily affects infants between the ages of 1 month and 1 year, with the highest risk observed between 2 and 4 months. The risk decreases significantly after 6 months and is very low after the first year. Factors such as sleep position, sleep environment, and parental smoking can influence the risk of SIDS during this age range.