I have never heard of the previous smokers thing, but have heard of smoker, apparently it's if one of the parents is a smoker as it alters your sleep patterns apparently..

Obviously drug and alcohol use is a big one..

Deb I have heard the obese rule too, but I thought it was more a smothering thing rather than that the parent wouldn't feel the baby, and some obese people are much deeper sleepers..

Nell: if you feel Matty can pull the doona off him self or roll away from it then it would be okay, you have to judge on their developmental ability..it's like kids in cots, once they can roll they are lot safer..

There is a LOT of research with co-sleeping that isactually prevents SIDS, becaus ethe baby mimic the parents breathing patterns..there are SOO many more deaths by SIDS related causes than co-sleeping (and alot of those are when people sleep on the couch, or under the influence)

Wome too are alot safer sleepers because their hoormones make them more in tune with their babies..