For anyone that has bought a crib bumper, unless it is mesh, I urge you to do your research. They have been proven to be one of the big risk factors for SIDS and other causes of infant death.
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it's unknown what causes SIDS. I wish they did though.
I agree they can be harmful and cause suffocation but SIDS is different.
I wish they did know what is the cause of SIDS. just wanted to clarify