Hi there, I've been following this thread a little and wanted to stop by and say I'm so sorry that you get so little sleep.
I remember my DS's second year his nights were almost permanently disturbed by teething, we had a really rough time of it and he was already and independent sleeper but the teething thing was crazy. In fact I gave up my one evening per week out the house to go to a 2hr ballet class because my mother (who minded him for the 2hrs) could no longer cope with the NWs and screaming during those 2 hours I was not home. I also remember a blissful 3 days (or rather nights) of quiet peaceful sleep when his canines finally stopped hurting, I was in heaven... ...then the molars started. Sheesh - this is the thing with babies, even the independent sleepers need their parents in the middle of the night when they are suffering with teething and/or separation anxiety or the countless other things which come along to disturb the night.
The problem with the suggestions thus far is that its just not practical to think that with my schedule and call time and my husbands schedule and call time and twin 3 year olds that someone can dedicate that much time to sitting nonstop in her room.
Honestly I'm amazed by this. I get that it's hard, I really do. Been there. But to me the logic is to resolve the sleep issues so that everyone can get as much sleep as possible rather than simply dismissing the known routes to respectful sleep training because it doesn't fit with your life style. The difference between a few weeks dedicated sleep training and another 14 months or more of bed time refusal and co-sleeping is huge.
To me it's a no-brainer, do what your baby needs to reassure her that she is okay, that you love her, cherish her, will always be there for her, give her the deep knowledge of love and respect and the confidence to sleep alone. It is a gift to give this level of confidence to her, it is a gift to give her the skill of independent sleep so that she sleeps peacefully and happily with lovely sweet dreams knowing all the while that she is safe.
I truly believe this. Independent sleep is a *gift*. We can choose to give it to our children or choose not to.
Really that's your decision to make. I don't see that this is a gift that comes in an easy form, being a parent isn't easy, there isn't a compromise option where they just do what you want them to without any time or effort. IMO it takes huge time and effort and that's why it is a gift, you give of yourself.
WRT to the sleep training advise above. My approach would be ever so slightly different too. We are all thinking the same "basic" thing of reassurance followed by gradual withdrawal, we all just have a slightly different approach to it.
I'd suggest beginning the process with allowing her to cry on you (in her room), and not trying to shush her or prevent her from crying nor tell her to stop nor try to put her down. I would *listen* to her cry. What I mean is, when a family member or a close friend has some devastating news or sadness in their life we *listen* to them, we let them off-load and tell us all about it, we let them repeat themselves and "get it all out" we do not say "ok, heard enough, stop crying, don't be silly, it doesn't matter" rather we sit relatively quietly and reassure our friend that we are there to listen, to take the load, we say "aha, hmmm...oh yes, ah, oh dear..." and "what else happened? then what? oh I see, ah, yes" and "I'm here for you. I'm here."
I would suggest beginning in this manner as it sounds to me like your LO has a pretty large dose of SA and that things have been bugging her for a good while, sounds to me like she has a LOT she needs to tell you about and she wants to be *heard* not placated. I read about this once and tried it with my own DS, wow, he really had a lot to say as it turned out, and then at the end of telling me he was SO calm - I don't mean cried himself to sleep from exhaustion I mean he really felt *heard* and when he seemed finished I asked him if there was any more he'd like to tell me and he cried again, his form of communication, and I listened again and held him and told him I was listening. And when he was done, he was done. It takes longer to listen then it does to placate but honestly I think it's worth it. I also think it is worth some loss of sleep to allow her to speak and to be heard. Ultimately it increases the bond of trust between you and raises her confidence in you and in herself - and with raised confidence there is greater ability to self settle.
To me this is all part of the "gift" - it isn't about getting back to sleep as quickly as possible in the night it's about gifting to her the happiness and serenity of peaceful sleep.