Will your doctor tell you this? No, probably not. It has been a decade long struggle to get the toxic gas theory for crib death and the mattress wrapping campaign into the mainstream, but as of today, only a few doctors know enough to educate their patients.
Will you see a recall of this product? Not likely. As long as mainstream researchers continue to ignore the evidence and neglect the general public, this product will appear innocent and non-threatening. No link will be made between synthetic and flame retardant products and crib death until the researchers wake up and face the truth.
What will happen if you use polyester fleece crib sheets? Possibly nothing. Or possibly the death of your baby. It isn't worth the risk...just don't use them. Many people think that the toxic gas theory is bogus since their baby slept perfectly fine on an old crib mattress. Or they may know someone that lost a baby who slept on a brand new mattress. It's real easy to accept or negate evidence based on what happens EVERY single time, but with crib death statistics it isn't that easy. No one knows *why* some mattresses are more dangerous than others, or why some babies are more susceptible to die from the toxic gases, but what we know is this: Since *NO* babies have died on wrapped mattresses (though babies continue dying on unwrapped mattresses) we know that mattress wrapping has essentially prevented crib death with 100% success. And those statistics support the validity of the toxic gas theory without question.
Just please do not use polyester fleece sheets underneath your baby aged 0-12 months. No matter how "comfy" they make them sound!