My LO is starting to create her own schedule. Seems she starts to fill herself up around 6 and pretty much eats nonstop until 9. Sometimes she will sleep until 2ish but the last few nights she's been sleeping until 4. Today was 4:30! I just switched from supplementing with formula to *almost* exclusively breastfeeding. Yesterday she got less than half an ounce of formula so I was expecting she'd be up much earlier. Is this normal?! She weighs almost 12 lbs so maybe that's helping? My first was always super skinny and I don't remember him sleeping this well until closer to 3 months.