@chenml60 I breast fed, and cosleep. BUT i used a sleeper thing we call the POD, until baby was able to roll and sit up on her own. It put her on a separate sleep surface that was like elevated. This kept our blankets away, and removed to possibility of her rolling under me. Her shoulders were in line with my head.
I think if i remember from the Meta Data studies, there is nothing that says breastfeeding exclusively makes safer co-sleeping. BUT the studies show that breast fed babies “in general” are at lower risk of SIDS. And all babies sleeping in the same room as the parents, on a separate sleep surface “in general”, are at lower risk of SIDS from babies sleeping in a separate room.
The main co-sleeping SIDS risks are unsafe sleeping surfaces like couches, chairs, blankets, pillows, and other children; AS WELL AS a parent intoxicated. Drug use is the main factor in creating unsafe sleeping for babies with wasted passed out parents. Second being on a couch, arm chair, rocking chair etc and babe slips between the cushions getting trapped.
All this to say, the “safe seven” is just a guideline, not a guarantee, and you must use your own discernment.