My son keeps waking up becuase i think he can't seem to get himself comfortable. He is 20 lbs and almost six months old now but cannot roll over by himself yet. When I put him in his crib, he is fine for a while but then seems to want change positions but cannot do it himself. For example, he loves to sleep on his side sometime so I put him on his side. But then he will fall onto his back, even with a sleep positioner, and wake himself up. This leads to frequent trips to the bedroom. He will go right back to sleep but I was wondering if anyone has any experience or advice on this. Or do you think the problem will clear up when he starts rolling over by himself?