Co-sleeper

Avery is our little snuggle bum. She refuses to sleep by herself. After nights of me being squished and sore from being stuck in the middle, we bought the co-sleeper. The concept is nice, the baby is right next to us without actually being in the bed with us. Of course, it's not good enough for Avery. She wants in the bed. I guess it's not too bad right now (except for the wiggling and lack of space), but what about a few months from now when I want her to sleep in her crib?