Trying to wean my almost 15 mth old son from the bottle. What do I do when he's hungry middle of the night?

Wow this whole weaning my son off the bottle is not easy, lol. Granted I already kinda knew it wouldn't be "easy" but holy. He is sooo stubborn when it comes to sippy cups. He'll drink juice out of sippy cups just fine but when there's milk in there he throws a big hissy fit. Last night he woke up around 1:30 and was hungry and I was so out of it I just made him a bottle and didn't think anything of it. We do feed him before be (food food) but when he goes through his growing spurts he tends to wake up in the middle of the night to eat. Any ideas please!! Thank you SO much