P.G.
I did the same thing as you, set up a comfy place on the floor for my kids to sleep when they would come into our room at night. Eventually they outgrew it. I wouldn't make a big deal out of it. Forget what the "experts" say about taking them back to their own rooms. I tried that too and they would just come back in our room later, after I went back to bed. It was then that I decided I could either spend the whole night taking them back to their rooms repeatedly, or let them stay and we could all get a good night's sleep. Sometimes little ones just need the extra security of being near their parents.