Supplementing w/ formula will actually reduce her supply but it will fill baby up longer. Milk production works on a supply and demand basis. If it's not demanded, the supply won't continue. Breast fed babies don't stay full for long, they usually eat every 2-3 hours during the day and 3-4 at night for the first 3-4 months, where as formula fed babies usually go about 4 hours during the day and 8-10 hours at night. She may find if she wants to bf, that increasing her caloric intake as well as water intake will increase her supply, as well as nursing more often and pumping if needed. It is not bad or wrong to supplement w/ formula, I ff only, instead of bf, but IMO it is misinformation that the formula will HELP if you want to solve the problem of a low supply.
For the babies that are having a hard time sleeping, swaddling is a HUGE helper for us! Try a swaddle wrap like this one:
http://www.amazon.com/exec/obidos/tg...y&n=507846 I own 3 of these, way easier than using a blanket. Until babies get their hand coordination down, they wake often thanks to getting smacked in the face by themselves, and they also are hard to keep sleeping if you've rocked them to sleep and then try to put them down. A tight swaddle will fix that. If baby sleeps better on the tummy, (try the side also) just make sure they are not on a soft surface that could but smooshed up against their nose and mouth.
Around 6 months they can be left to cry it out if needed, that is about the time that they are able to put their own bikis back in, or push buttons on an Aquarium or Soother to help them self comfort. Kyla is really loving her Flutterbye Soother
http://www.amazon.com/exec/obidos/tg...474570-9031906 and Caleb, who is almost 3, still loves he FP Ocean Aquarium.
Hope any of that was helpful. On the bad days, I remind myself that nothing lasts forever. I know it's hard at times, but what true miracles we have been blessed with!