It's terrific that you're attempting to address the sleep issue now. As you know the longer you wait the harder it is to change!! I have 3 kids, ages 4, almost 2, and 9weeks and all of them have been horrible with sleep, so with my last child we actually consulted a sleep expert. The best method I found was the book by Kim West "Good Night Sleep Tight" which breaks it down age by age of how to approach sleep "training" in a gentle but successful way. And the chapter on 8-12 week olds that I"m currently tackling as well, is working on doing away with "motion sleep" and transfering all sleep to the crib/bassinett. Using a short routine, patting, trying to get them to put themselves to sleep and only picking up when absolutely necessary to calm. You too have a little one around so it's not always easy to sit by a crib and dedicate the day to getting the baby to sleep, so the "Sleep Lady" suggests starting with night time, and tackling naps later. And yes, she should be able to sleep longer than 3 hours at a stretch at night. That said, my 9 week old will sometimes go 5-6 hours at night, but other times, like last night only went 3 hours... moral of the story, you try your best to do what's best for them, but you also need to do what works for you. For me, I need my sleep or I can't function so I try to soothe with the pacifier, check for a burp quick, but if it's not working, I will just feed him so we can both get back to sleep. I hope the book helps, it's my Sleep Bible :) and if anything know you've got moral support here, and if there's anything more I can help with, feel free to contact me!!