I co slept with both of my children, and I have to say I find this campaign to be a bit disturbing.  Co sleeping is a natural arrangement that many other countries adopt as the norm.  As a full time working mom I cherish every minute I get to spend with my kids, even the sleeping moments.  I always slept with my hand under their head, it would position me in a way that would be virtually impossible to roll over on them and I could feel their movement as well.  When we were expecting our second child we moved my son into his "big boy" room with no problems, contrary to all of the folks who told us we'd never get him out of our bed.  Every parent knows what works best for them, and as long as they are being safe they should follow that parental instinct.