It was all going so well until Christmas. DD did 7pm-6am consistently. Then she had two solid months of snot and it all went to hell. She wakes up, and she babbles to herself, and then the whining starts. If I try to resettle she screams blue murder until I leave the room. Then whinges again. Usually if I offer her milk she'll go straight back to sleep. Not tonight though. Gave her milk at 2.45. She still won't shut up. I'm going to crack up if I don't get some decent sleep. How do I persuade her to stop whingeing and start sleeping through?