Sudden Infant Death syndrome (SIDS) is defined as the sudden, unexplained death of an infant, and is the one of the main causes of death among infants between a month and a year. SIDS is said to occur only when no possible explanation can be found even after:
The baby typically does not seem to show any sign of suffering and death occurs rapidly. In addition, SIDS is commonly known as crib death because of a strong link with sleep. It is estimated that 2,500 babies in the United States die of unknown causes every year.
While no single cause can be pinpointed, researchers believe that SIDS may be the result of a combination of several factors.
The last point should be emphasized, as babies tend to pause in their breathing, or re-breathe exhaled air, reducing the amount of oxygen in their blood while increasing carbon dioxide. Babies need clear space around their heads to breathe freely.