Sudden Infant Death Syndrome (SIDS)
We don't know for certain what causes SIDS. But we do know that some babies are at higher risk of SIDS than others. Most SIDS deaths happen in babies two to four months old. SIDS can happen any time of year, but it's more common in the winter months. There is no sign that babies who have lost a brother or sister to SIDS are at higher risk.
There is not one particular thing that causes SIDS – it’s usually, it's a combination of things can make a baby at higher risk of getting SIDS.