DD is 17 weeks and started sleeping badly (after a GREAT start) about 5 weeks ago. At first I think it was teething and a growth spurt - she woke almost every hour from waking just once or twice between 7-7 since being tiny. Then we got to twice through the night again - just one feed and one stir, now back to awful nights. She has never (since first couple of weeks) feed fed to sleep, rocked to sleep, walked, dummy etc. She self settles each night but wakes from around midnight onwards every 90 min - 2 hours. Feeding extra makes no difference, and sometimes she wakes at 5 ready for the day - something she never did! Also, she is not hungry for her morning feed at 7ish after taking one feed through the night. I don't have much leave left and want to spend some of it with her in a more awake state!