D.Z.
D.,
I breast fed all four of my children for one year (actually my almost 15 month old still nurses morning and night). I don't recommend formula or cereal for the purpose of getting your baby to sleep longer. It is true that those things are hard to digest. The reason your baby wants to eat every two hours is because he is absorbing the nutrients from your milk, digesting it properly and he is ready for more. That is the way it is when you are nursing. My first baby nursed every two hours around the clock for the first 5 months. There was no lack of milk, he just needed it. I was completely exhausted but it was well worth it. I took up residency in our recliner and to be truthful he rarely slept anywhere but in my arms in the recliner in between feedings. And no I didn't have any problems transitioning him to his crib once he was weaned.
You will be more tired as a nursing mom, but you are absolutely doing the best thing for your baby and you are to be commended for that. You will make it through this. I know at times you are so tired that you don't think you can go on, but you can and you will. Nursing moms know that the sacrifices we make in sleep are well worth it in the long run. We don't have to tell you the benefits of nursing, now just consider doing it exclusively no matter what. You can do it!
D.