I slept in my mom's room a lot (not every night but a lot of them) until I was...probably 10-ish, I don't really remember. She was/is single so it wasn't an issue of interrupting husband/wife time or anything. I'm still not sure why I did it but one day I just stopped. Because of that, though, I made a point to make sure my kids were in their own rooms. I have issues with co-sleeping, even with babies (it's dangerous) but I definitely think there's a problem when the child is sleeping in the same room, especially the same bed, after 12-ish months.

Noah was in his crib in our room from the night we brought him home from the hospital. At 7 or 8 months we moved him to his own room (which was a captive bedroom off of ours) and right around that time I started crying it out. A week later I put him in his crib and didn't hear a peep out of him until morning. He's been like that ever since, never gives me any trouble going to bed.

With Allie we had breastfeeding issues and she was nursing nonstop for hours at a time so I ended up sleeping on the couch with her a lot. When she was 2-3 months old she was put down in her crib and around the same age as Noah I cried it out with her. She took longer but she started going to sleep quietly, too. At about 9 months we moved her to her own room and that's where she sleeps. Lately, though, she's been crying for a few minutes every night.

I just don't understand parents that basically give in to their child on things like this. It only seems to create problems in the long run.