Sudden Infant Death Syndrome (SIDS) is defined as "the sudden death of an infant under one year of age that remains unexplained after a thorough case investigation, including performance of a complete autopsy, examination of the death scene, and review of the clinical history." SIDS kills approximately 5,000-7,000 babies in the United States each year between the age of one week and one year, with the highest incidence from one to four months. SIDS strikes even healthy babies; more males than females; is more frequent in fall, winter, and early spring; and, while the rate is higher among African-American babies, it is no respecter of race, education, or socioeconomic factors. No one can predict which baby will die from SIDS and, while it is neither contagious nor hereditary, a baby whose sibling died from SIDS is at increased risk. Death is sudden...