My little DD is 3.5 months and up till her 12 week vaccinations was sleeping between 5-7 hrs then feeding and then back to sleep for 2-3 hrs.
Since her vaccinations (may be coincidence) her sleep has dramatically changed. She goes down at 7.30/45 and sleeps for about 2-3 hrs and then she wakes the rest of the night every 1-2 hrs.
The only way to get her to go back to sleep is to breastfeed her so I am sure she associates feeding with sleeping...
She sleeps in a bednest (cosleeper) next to our bed. She manages to still sleep till 8am so I don't think its a light issue as often she is most wakeful around 3am.
Any suggestions would be great. I have tried feeding her a bottle of formaula to settle her but she refused...