In Brief:
Sudden Infant Death Syndrome (SIDS) is the most common cause of death of infants older than one month and younger than one year old. SIDS occurs most often between two and four months of age. Sudden Infant Death Syndrome Pediatricians encourage letting babies always sleep on their backs rather than their sides or stomachs. Medline Plus: Sudden Infant Death Syndrome This page is not a substitute for medical advice.
