Stomach sleeping - This is probably the most significant risk factor, and sleeping on the stomach is associated with a higher incidence of SIDS. It is unknown exactly why stomach sleeping increases the risk of SIDS, but doctors have hypothesized that either anatomical pressure on the airways or the phenomenon of "rebreathing" exhaled air with less oxygen might play a role. It is also possible that some babies' brains may not respond as well to internal cues and stimulate waking when lower levels of oxygen are present in inhaled air.Exposure to cigarette smokeprenatal exposure to cigarette smoke, drugs, or alcoholCo-sleeping - Earlier studies showed an increased incidence of SIDS in babies whose parents smoked and when they shared a bed with parents. Newer research confirms bedsharing as a risk factor for SIDS independently of cigarette smoking. Sleeping in a room alone also confers an increased risk when compared to babies who sleep in a crib in a parent's room.prematurity or low birth weightPoor prenatal careMothers younger than 20 years of ageand to also let you know this diseases have affected more African Americans then coucasian, and Native Americans have about a three-fold increased risk of SIDS when compared to Caucasian infants
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