Srrme - I know the co sleeping this is a debated topic. I am truly not telling you you are wrong
I will say that in the past 2.5 years in the county my mother works in, every single SIDS death happened in a co sleeping situation. I know that there are plenty of other factors that can contribute as well, but I think it is worth mentioning and considering.
Studies definitely conflict:
Sudden infant death syndrome (SIDS) is the sudden and unexpected death of a seemingly healthy infant during sleep. Although the exact causes of SIDS are largely unknown, a recent study released by the British Medical Journal (BMJ) found over half of SIDS cases occurred while the baby was co-sleeping with an adult or another child.
Of those deaths, many occurred in a potentially hazardous environment, such as in a bed or on a sofa with an individual who had recently used drugs or alcohol. This is the latest argument in a long-running debate on the connection between co-sleeping and the mysterious and devastating occurrence of SIDS.
Does Co-Sleeping Cause SIDS?
In addition to the new study by the BMJ, the American Academy of Pediatrics (AAP) cites another study conducted by the European Concerted Action on SIDS that found co-sleeping was a significant risk factor among infants up to 8 weeks of age. Other studies have also suggested the risk of SIDS increases the longer bed sharing lasts during the night, when there are multiple bed-sharers, if the mother or bed-sharer is a smoker. The AAP also strongly discourages sleeping with an infant on a couch, as this has been shown to be extremely hazardous.
I think it is good either way people choose, that it be something they research

so I think it is good to talk about even if opinions differ!