My 4 month DD has been swaddled since birth pretty much. Should I stop now as I've heard that it might affect motor skills? We've tried a couple of times putting her down in a gro bag but with no success. She's a wriggly little thing and keeps herself awake with flailing arms, but surely at some point she needs to learn to sleep without it? Has anyone got any experience? How long did you swaddle yours for and how did you stop it? Any advice greatly appreciated.