Emma, another couple questions...
Did the DF work for your DD at one point? I used to do the DF and then she'd sleep for 5-6 hours, feed, and then give me another 3 hours. Things are totally foggy these days, but she never used to open her eyes and wake up when I did the DF, and I wonder if thats when things started to go crappy. Since she's been about 3 months, our nights have gone down the drain!
Once you got her out of habitually waking around the time of the dreamfeed, did your nights improve? Was she EBF? It's nice to be able to compare BF babies to BF, because I think formula fed babes tend to be able to go longer between feeds anyways.
Also, I find that she's in a light sleep between 10-11, because it doesn't seem to matter at what time I do the DF, she wakes easily. So what time should I do W2S? At 9 or 9:30?? Her bedtime is typically around 8/8:30pm.
Sorry for all the questions....I'm really hoping for reassurance that things will get better soon....!