Megan B. is right. Ditto.
Keep in mind, and this is important... that babies go through "growth spurts" AND at these periods, they need an increase in intake, they are growing, AND they feed more frequently. You can't stop night feedings or "control" feeding them if they are going through growth spurts and developmental changes. It's a natural "need" that they need to be fed more.
As a child grows, their appetite and nutritional needs INCREASES in proportion to them growing. They need more sustenance.
For the 1st year of life... a baby needs to be fed on demand... and breastmilk/formula is the PRIMARY source of nutrition for them. NOT solids. This is also echoed by my Pediatrician.
Many times, a baby wakes more because they are hungry and changing. Imagine- having to go to bed at night, while hungry...and not being able to soothe yourself, and not being able to eat, and being denied what you need to alleviate yourself...but you were only "allowed" to cry and cry yourself to sleep...and on top of that you are PMS'ing and more emotional, and no one helped you, and all your Hubby did was ignore you and "grumble" that he hates waking up for you to help you, and he just ordered you to go back to bed and "shushed" you???? Well, this is what babies are expected to do many times. No wonder they are not happy at bedtime.
Or, imagine... sometimes you're sad for no reason or you need your Hubby more and want extra kisses or hugs and solace from him and understanding for any stress your'e feeling. But all he does is tell you "No..if I hug you and kiss you and listen to you more, you will get too dependent on me and then you won't grow up correctly... oh, and no venting to me either. Now go on your way and get over it..." Often, this is the way babies & kids are "expected" to be too. Do ya think it's good? What does that "teach" us, and them? I don't mean to be so direct, but when I look at my kids, in all the inconvenient "phases" they go through... this is what I think about. Then, I can look at them, with different eyes.... and tend to them as they need. Even though I may be tired.
The "whining" you hear and see... is often that the baby is making natural sounds as they sleep...it does not always mean that they are "awake" or need to be woken up. Try let her be, see if she just goes back to sleep... but if not, go and comfort her or feed her. Even adults make noises while sleeping... but it does not always mean we are "awake" or need to be woken up. Noises during sleep, for anyone, is normal. But, if she is crying and distressed and not able to go back to sleep, this is normal. It's okay. Nurture her. They are still needing to bond.
Also, try letting her have a "lovey." My son LOVES his stuffed cow... it's his "pal" and he loves to sleep with it, and to just have it with him. It is soooooo okay to "let" a baby have a "soothing" object, there is NOTHING wrong with it. It is a natural instinct for babies to need this.
9 months old, is a growth-spurt time AND a time of developmental changes. ALSO at any milestone period, babies get hiccups in their sleep. Remember, sleep patterns in babies are NOT static...they are constantly changing internally & physically and this will happen throughout their childhood up until Teen years. So, there will be other sleep "issues" forthcoming. Its ALL normal. As adults, we certainly do not sleep the same way, the same times, in the same manner since we were babies either. We all change and our sleep patterns follow this change.
ALL breastfeeding Moms nurse their baby to sleep. It's okay. It's natural, it's normal, it's okay. No need to pressure yourself over it being a "bad habit" at so young an age. You don't "have to" wean the night feeding... she is so young still. I let both my kids "self-wean." And they did so when they were ready.
Each Mom is different & each generation. Just go with your heart and instincts and your baby's needs. You are doing fine.
all the best,
Susan