OMG! they love harping on about co-sleeping being bad.
I agree there needs to be clear "rules" on how it should be done ie. baby has its own sleeping bag- does not share cover with the adults etc
When we were in hospital the drs didnt like me having DD in bed with me but co-sleeping is the norm I think the rate is about 80% for co-sleeping. It is a western idea that babies should have their room.
In 2005 their was a study published called- why babies should never sleep alone. If you can google it and read it is interesting.
personally, I think co-sleeping creates a secure loved feeling for the children. no suggesting to co-sleep for ever, room sharing is also great- particularly when you want privacy/ or baby is on the move in your bed too much.
But really to each their own really and some concrete guidelines need to be set for people to know would go along way