So about a week ago we did some sleep training with LO (9months old) to help her break her waking every 2hrs habit. After some sleep training her routine became bed at 6pm, eat at 4am and then sleep till 7am. But my questions, if they wake up in the middle of the night do you go in? LO woke at 12 last night and I wasn't sure if i should go in or let her work it out. What do you do?