Kaitlyn is almost 8 weeks and has definitely gone through the 6 week growth spurt, so I know that this is not happening for us.
She is also very good at getting to sleep independently with little help from me (except for this one night time waking). I usually go into her room and sit on a chair beside her crib, put her paci back in and rub her chest till she drops off. Then I leave. I have tried waiting the full 20 minutes after she goes to sleep, but even after that she will still wake up about ten minutes later. I have even stayed in with her for 40 minutes after she's asleep, and she still will wake up at the 30-40 mark.
I have tried to DF her with no success. She will only ever take 1 oz... If I persist, then she wakes up crying. I don't think an extra ounce is worth the trouble.