my thoughts at the moment on SIDS as a mother of 3.
#1. When DH & I & our siblings were infants we had several "risk" factors for SIDS including being FF, belly sleepers and living with smokers. Heck my littlest sister was a premie! All of us turned out OK.
#2. In order for me to function as a human being, which I need to do to take care of my 2 older DDs (4&7), I NEED SLEEP. The only way DD3 sleeps well is on her belly, she even hates the Amby.
#3. DD3's only risk factor at the moment is the belly sleeping. There is some controversy over co-sleeping and SIDS so I don't count that (when we do it, we do it part time and when we do she sleeps on her back/side).
#4. She is BF, which is supposed to help prevent SIDS.
#5. Her head control is excellent, has been from birth.
#6. We have a very old crib mattress which we will be replacing very soon so she can transition to her own room for at least part of the night. Until we have it replaced she stays in our room in the bassinette portion of the packnplay.
#7. If mattress wrapping floats your boat, go for it. IMO, I think that a new mattress will be fine for us. Our old one is 7
#8. DD3 was a healthy full term infant. I might not feel this comfortable if she had been a premie or was not well in some way.
#9. Our ped casually mentioned that her children were belly sleepers as well. If she felt totally convinced that our DD needs to be on her back, I doubt she would've mentioned this
: (side note being, that our relationship with our ped is very tangled as of late. Our MWs children used to play with Ped's children when they were little...something we did not know until DD3 was born!) Especially since our Ped is Hell bent on certain vaxes...
#10. We feel comfortable letting DD3 be a belly sleeper. It won't be long till she's rolling and we won't be able to prevent her from getting to her belly then...
Finally speaking of vaxes...what evidence do you have that leads you to believe that SIDS is related to vaccines? I am in the midst of vaccine "enlightenment" as we speak...