Firstly I've done CIO with all 3 of my children so I'm not against it
However, I think you need to be aware that if someone's used to eating at a certain time then their body starts expecting it and they feel genuinely hungry. For example, when my twins were newborn I got into a really bad habit of eating cereal bars while doing the night feeds to give me a bit of energy. It wasn't long at all before I started feeling hungry in the early hours every night
I know it's going to take longer but I would consider gradually reducing the amount of milk in the bottles and / or diluting the milk (probably both). This will hopefully turn off those hunger signals. You can then look at CIO when he's weaned off the night feeds x
However, I think you need to be aware that if someone's used to eating at a certain time then their body starts expecting it and they feel genuinely hungry. For example, when my twins were newborn I got into a really bad habit of eating cereal bars while doing the night feeds to give me a bit of energy. It wasn't long at all before I started feeling hungry in the early hours every night
I know it's going to take longer but I would consider gradually reducing the amount of milk in the bottles and / or diluting the milk (probably both). This will hopefully turn off those hunger signals. You can then look at CIO when he's weaned off the night feeds x