Hello. I tried the formula for 4 days. I'd give him 90ml of formula, then put him in my breast to finish his "meal"( and pump afterwards to empty it). For 2 nights he slept straight till 5! I was so happy! but then, the 2 following nights, I did the exactly same thing, and he woke up even more than usual. At 1:45, 2:15, 3:30, untill I finally gave up and fed him. The next night same thing happened. So honestly, I don't know if the formula works or not. Tonight I'll drop it and see waht happens!!!! Thanks for the support!