Did any of you use a co-sleeper? I'm realizing our co-sleeper days are numbered. My big chunker sometimes had a small loose blanket over his swaddle but he learned to do the worm and get it on his face a couple of weeks ago, so that's over. Last night he was swaddled super tight so he couldn't get his arms out but he managed to get the entire swaddle up over his face instead, so it's arms out from now on. We already had to stagger the babies so they don't smack each other in the head. Is moving to cribs a big deal? I mean, other than the fact that I have to go out and buy cribs? I'd actually like to keep my tiny girl in the co-sleeper for a while longer so it might just be my boy moving on.