I have an 8 week old who follows a 3 hour easy routine. She used to be great at night, sleeping from 7:30am until 3 or 4am and then until 6 or 7am. She was very easy to settle after each feed and went to sleep quickly.
She had a bad night about a week ago, when she was very hard to settle and fed 3 times and cried lots. Since then she's woken at about 12:15 and is just grizzling in her cot. We can delay feeding her until about 2-3am but I think she grizzles all this time. She is very hungry to start with but often only takes about 3oz. Sometimes she then settles quickly, sometimes not.
Sometimes she is very hungry at a night feed, sometimes appears v hungry but then only takes a little. Sometimes she settles well after a night feed, other times not and she'll lie awake for ages. I know she can do longer than 7pm-midnight as a few weeks ago she was regularly doing until 3 or 4.
My question is, should I feed her as soon as she wakes and starts to grizzle in the hope she'll go back to sleep faster, or leave her until she cries in the hope that she'll start to wake later? I don't know what is causing her to be so a ale at night. She's having 4-5 hrs of daytime sleep