My son is 9 months old and has been sleeping from 10pm until at least 6 am since he was 3 months old. I primarily followed the Babywise parent directed feeding method and that really helped teach my son to sleep. He currently eats 4 times a day and takes 2-3 naps for 4-5 hours total. I give him formula (he drinks about 24 total ounces a day) and eats solids (cereal and fruits/veggies) at breakfast and dinner. I give him his last bottle of 4-6 ounces of forumla at 9pm and he's in bed by 10. When he first started he would wake up in the night, but learned to settle himself and go back to sleep. I believe it's important to teach children how to sleep and how to put themselves back to sleep. I do give my son a pacifier, but only when he's sleeping and now he's able to find it and put it back in his mouth if he wants it when he wakes at night. I also keep my monitor sound pretty low so if he does wake and is quietly fussing, it doesn't bother his dad or me... but if he's really crying, I can hear him and respond. I am so thankful that he's a good sleeper, but I know we worked hard in the beginning to get him on a regular eating/sleeping schedule. I really enjoy getting 8 hours sleep! Good luck!