Ok moms I need some help. Our 9 month daughter use to sleep through the night but now for the past week or so she has been waking up between 1-3 and won't go back to sleep right away. We sometimes let her cry and see if she falls back to sleep by herself but if she doesn't we try rocking her back to sleep and sometimes that works but sometimes she will wake up again when we put her back down in the crib. Could this be the 9 month sleep regression or could it be a sign of teething? I would really her to sleep through the night again. Any advice?