To night wean, or not?

I've been thinking about night weaning Mikaela for - oh, a few months now I suppose. I decide to definitely do it this weekend and then she gets sick/I get sick/we forget, or something. And we don't do it. And the thing is, I am conflicted about it, and yet I so long to do it as well.

We night weaned Liam at eighteen months. At that point he was still waking every hour or two to nurse, but he had stopped going back to sleep afterwards. It felt like an open and shut case. Also, it was very easy. I told him we were going to do it. On the 'last day' I reminded him each time we nursed, and again with the last feed before bed (which we did in the living room, as was our habit - Chris then taking him to bed and lying with him till he fell asleep).  Then the night in question Chris slept in the bedroom (our bedroom) with him, and I slept in the study. The first and maybe second time he woke up he cried for me, and Chris took him into the ensuite to distract him (he loved looking at all the stuff on the window sill in there). After that he was fine, and it really only took that one night, though I spent another four blissful nights sleeping in the study. The only times we went back to night nursing was when he had a vomitting bug, and it wasn't ever hard to reinstate the rule afterwards.

I think I first started considering night weaning with Mikaela at about the same age, and for the same reason - she didn't seem to be going back to sleep easily any more with the nursing. But with one thing and another it didn't happen then, and then things improved. But they have unimproved again several times in between. She's now twenty-three months old (moreorless - I've lost track of what date it is). Part of the issue is, I don't think it will be as easy with Mikaela as it was with Liam. For one thing she sleeps in a cot, so no-one can lie down with her. We have a rocking chair in her (our) room, which is where I nurse her, and where Chris rocks her. But when she wakes after midnight (and she almost always does, at least once) she tends to chuck a wobbly if Chris shows up instead of me. And by that I mean she gets totally hysterical. Ditto if I show up but refuse to nurse - as I have done on occasion when she has chewed me raw or just worn me down with too many wakings, though admittedly I haven't tried that in a while.

There are two good reasons for doing it though. No three.

1. Often it seems as though the nursing is keeping her from re-settling properly.
2. I suspect that like Liam, she might start sleeping through the night more often if there wasn't the promise of mummy-milk in the middle of the night.
3. I would like to be able to just snuggle with her like Chris does.
4. I would like Chris to be able to take responsibility for her for whole nights (or series' of nights) (though admittedly she may still resist that even without the nursing), especially if I am going to be trying to get pregnant again in the not-to-distant future.
5. I forget what five was.
6. She was up from 2:30 to 5:30 last night, and again at 5:45
7. (Okay six is not really relevant, as I don't think it was a nursing issue - it;s just to show that I do have more good reasons but I am too sleep deprived to remember what they are. Which is also the reason I have given up on trying to re-write my essay half an hour before my work time is up.)

So, more than three then. Actually I think only 1. (one) above was one of the three I had in mind when I started writing that list, but as I said, my brain is mush.

So what are the reasons against?

1. I think it will be really hard.
2. I think she may cry a lot and indeed get quite hysterical
3. I think it will be really hard.

I think there are some other reasons, but again, I cite my mushed brain.
I may come back to this if I can, but now I have to go pick up Liam from school.

Sleep deprivation. Will it never end?