Hi,
I am constantly amazed at how many parents have sleep problems with their babies. Both of my children slept through in their third month of life. I can't imagine how you are surviving. 3 months of broken sleep was plenty for me! I think you need to see each child as an individual, but the goal should be the same - to get them sleeping independently and able to self soothe back to sleep. It has been proven that babies awaken many times in the night. The only diference between mine and yours is that I taught them to self soothe rather than feeding of having to be settled by me. I remember my health visiotor telling me with my daughter that no child needs to feed in the night after 6 months of age. They may want to - but they don't need too. I co-slept with both of my children for the first 6 weeks of breastfeeding, then when the feed at that time went down to one in the night, I put the baby in the cot between feeds.
My daughter was happier by far being in her own bed. I learned early with her that if I tried to rock or feed her to sleep, she would fight the sleep - but she was in fact fighting me. One day in temper I just put her in her cot awake and told her to go to sleep! She did and I was amazed. She just wanted her own space and to be able to be settled by herself. She slept through the night form 8 to 8 at 3 months and 3 weeks. This was the point that she found her thumb also and was able to self soothe when waking in the night. If she ever cried in the night after this point, I went in and offered her a bottle with water in it, never my breast. She learned quickly that water was not worth waking me up for, so she didn't.
With my son, he slept with me until he went down to one breasteed at night (approx 6 weeks), then I started putting him in his cot between feeds. He slept 7 - 7 at 3 months 1 week. I fed him three hourly during the day from 2 weeks of age, he grew amazingly well (never dropped from his birth weight) and never let him sleep through a feed in the day. I woke him and made him take his day feeds so he wouldn't be hungry in the night. If a baby misses a feed in the day, chances are they will ask for it at night.
Both mine were fully breastfed and I weaned at 5 months of age (give or take a week), when they were ready. Each baby is an individual. I breastfed to one year old (give or take) with both and they both went straight onto a cup of water when they chose to stop breasfeeding. I figured that as they had only ever known breastmilk, if they no longer want to breastfeed, they don't need another milk to replace me, as they are unaware any alternatives existed!
I am just wondering whether you are disturbing your baby at night. I know I sleep more deeply when I am alone in bed. My husband wakes me several times a night by rolling over, nicking the covers or snoring! Maybe you should try putting your baby in a cot and see if she sleeps better alone with no one to disturb her. I would also recommend a strict pre bed routine of bath, breastfeed and bed. Always put her down awake, so she learns to get herself to sleep without relying on you to feed her or soothe her to sleep. That way when she wakes in the night she will have the skill/ability to get herself back to sleep, without relying on you.
Be aware that after an illness (cough, cold etc), because it has broken your baby's routine, you may need to use controlled crying or the bottle of water for a couple of nights to get them back to sleeping through. It has never been more than two nights of the baby waking in the night and asking for me to soothe them after they have recovered from an illness. I just told them it was 'sleepy time' and to go back to sleep and then left the room.
I don't want to worry you, but at sometime your baby should learn to sleep alone. My friend decided she would let her son decide when he wanted to sleep in his own bed. He was still in there at 14 years old! Her husband had left some years before - cant imagine why!
Wishing you all the best in getting a full night's sleep, soon!