I had the same thing with Bradley, he wouldnt take much of a dream feed at all, he want waking up for it either, but one night i accidentaly woke him, he took the full bottle and easily got settled again and slept until 6am, so this is what we started doing, just gently waking him, he wasnt wide awake but enough to concentrate on feeding. If you try it, dont talk to him or anything, still keep the room dark as it will make is easier to get him back to sleep