Yeah, our bub doesn't like the dream feed, he pretty much wont open his mouth! I agree with ShellBell, maybe just allow him to sleep if he is that tired. Perhaps get him ready earlier so his bedtime just begins around 6\5 ish, or whenever you sense him not being able to stay awake. My DS does this same thing, and I have learnt that even if he goes down early, he still might sleep longer the next morning.

Good luck hon