Honestly, it's a sad experience to parents for them to wake up to the heart breaking news that their new born baby is death. To make matter worst, the cause of the death is unknown. It would have been better if the cause of the death is explicable, but the mystery behind Sudden Infant Death System(SIDS) remains unresolved each time a baby sleeps he/she never wakes up again.
Interestingly, experts has made significant efforts to attribute SIDS to time of development of the baby, specific underlying susceptibility, and environmental stressors. Environmental factors such as the baby sleeping on his/her stomach or side, overheating and exposure to tobacco smoke, may be the cause. Environmental suffocation is another attributable cause of SIDS.
Another likable factor that cause SIDS could be time of birth of the baby. It is assumed babies born before 39 weeks of gestation are likely to die of SIDS. Infections, genetic disorders and heart problems might be other causes of sudden death in babies.