SIDS is less an actual disease, and more a convenient bucket to categorize "babies dying of asphyxiation for reasons we don't understand".
Some of those are becoming better understood (babies can't always tell if they're breathing CO2 rather than oxygen so it turns out they shouldn't sleep on their tummies) but mostly it's a fancy medical term for "we don't know". It's not even a mysterious disease and "no one knows what it's caused by"--we don't even know that a disease exists.
Some of those are becoming better understood (babies can't always tell if they're breathing CO2 rather than oxygen so it turns out they shouldn't sleep on their tummies) but mostly it's a fancy medical term for "we don't know". It's not even a mysterious disease and "no one knows what it's caused by"--we don't even know that a disease exists.