Sudden Infant Death Syndrome Sudden Infant Death Syndrome (SIDS), also known as “crib death”, claims the lives of 5,000 infants every year in the United States. It is the sudden or unexplained death of an infant in the first year of its life. It is the number one killer of babies under one year old, with 90% of cases occurring before the age of six months. SIDS claims the lifes of 5,000 infants, in other words a baby dies every hour of every day from this killer. #2 Some findings that scientists have discovered from their researches have helped with the knowledge of SIDS. This knowledge is made availble for people in all parts of the world. Some common facts are: (1) More