Sorry this just isn’t true.

SIDS is more of a category of “unexplained infant death”, so yes: some of these infants may have blocked their own airways.

However, that’s not true of all cases. There’s complex neuro-stuff going on that we don’t understand and is difficult to research.

We reduce the risk of SIDS by ensuring that kids are less likely to block their airways with blankets and so on, because those are the things we can practically do. We can’t fiddle with the neuro-stuff.

If your child dies of SIDS, that does not mean you suffocated them or let them suffocate themselves.

There’s a lot of research about this.