If my baby brother died of sids, could my baby when I have one?

Maybe. Sids is another way of saying that the exact cause of death is unknown. There is still a lot of research trying to determine what the cause of death in an infant is. We have also found that many infant deaths called "sids" were actually probably suffocation events from sleeping on the stomach or in an adult bed with adults. There is no known genetic predisposition to sids.