DD2 is 4 weeks now. She dozes off during night feeds on the first boob and I find it difficult to rouse her to keep feeding or have the second boob. But if she doesn't she only sleeps an hour or so and wakes again, which is hard on me. I was changing her nappy in between boobs but it wakes her up too much and she needs a lot of settling after. Any tips for rousing a dozy baby without waking them up completely?