3 weeks ago my ds stopped having his middle of the night feed (formula fed)He is now 12 weeks old. He now goes to bed at 8pm then dream feed at 11.45pm and then sleeps until I lift him at 7am for his feed. The last few nights however he has been waking around 4am and fussing. I have been giving him his dummy and he spits it out after a while and I put it back in and this more or less goes on until 7am. He never screams or cries but I'm wondering if he is hungry and if I should reintroduce this feed? He never finishes his feeds during the day but that's not to say he's not hungry during the night. Don't know what to do