I slept with my baby because that made it so easy to nurse him at night. Mothers have done this safely for 10,000+ years.
One possible hypothesis on the SIDS cases:
Maybe it’s one of those correlated-but-not-causal things. Like for instance, African-American women tend to have higher rates of gestational diabetes, pregnancy-related hypertension, and premature delivery. That may contribute to the SIDS deaths (that would be the causal part.)
But those same women may have been more likely to co-sleep with their babies because they felt the baby was a little frail and they felt co-sleeping would be more responsive and protective. To keep him cuddled-close and warm, etc.
Which is a mother’s natural and beneficial instinct to do: to stay as close to a very frail baby as she can.
So there’s a correlation, but the SIDS isn’t caused by the co-sleeping, it’s caused by the pregnancy risk-factors and prematurity.
Of course, if the baby has actually been laid-on and smothered, it could be because the mother has a drinking or drug problem which would cause the mother to pass out on the bed and not realize she’s overlaid the baby.
Heartbreaking.
I don't know when that changed--but I continue to tell my kids to put their kids on their tummies to sleep. It just makes better sense to me.
“So theres a correlation, but the SIDS isnt caused by the co-sleeping, its caused by the pregnancy risk-factors and prematurity.”
SIDS death is more likely to occur in such cases, yes. But SIDS also happens to healthy babies born to healthy mothers.