This is interesting.... Ds is 9 mo, we put him to sleep in his cot but more and more often he has been joining us in bed partway through the night, due to teething, colds, developmental stuff like trying to stand or pull up in the cot. This is fine, but I do feel ashamed about it, as if I have failed every night that he doesn't spend the whole time in his cot. I know my pils would highly disapprove if they knew what we were doing, and I know it shouldn't bother me, but it does. So this research makes me feel a bit better.