Does she normally have a dream feed? If I were you I would let her sleep and either at the time she normally has it, or a bit later, try giving her a feed without waking her up. You shouldn't have any problem getting her to take it, they are pretty good at feeding in their sleep, and you won't need to wind her as she will be so relaxed while she is drinking it. Hope that helps hun, sounds like youv'e had a crappy day!
Kerry xx