I’m a 27 year old single mother and I have a 12 year old son. Recently he’s been knocking on my door in the middle of the night because he can’t sleep and he asks to sleep with me. I’ve been letting him since neither of us really have a problem with it and it’s kind of nice not having to sleep alone every night. However, I’ve heard and seen some things online that seem controversial about co-sleeping with a child past a certain age. I definitely don’t want to negatively affect his development, so I guess what are your thoughts?