I haven't fully night weaned DS (who's nearly 9mo) but have drastically reduced his night nursing from 4-7 times a night to 1-2, allowing for illness, teething, hot weather etc, we did this:
We live in a 1-bed flat, so DS is in with us, either in cot or co-sleeping. I decamped to the lounge for 3 nights, and during that time DH did all the settling at night. First night was hard. Me on the sofa in tears, DS in tears, DH trying his best. We're very anti-crying too, but I had to accept that DS was with his dad, he was safe, his heart wouldn't break! No feeds that night, he took water a couple of times.
2nd night, bit easier, 1 feed
3rd night, much easier, 1 feed
I moved back into the bedroom but on DH's side of the bed and he continued settling. Was a bit more trouble as DS knew I was there, but still only 1 feed. I've since moved back to my side And can settle him without boob the majority of the time. This week has been rubbish as he's got bronchiolitis and it's been so hot but still much better than it was.
I think we were lucky he wasnt more upset by it. I make sure he gets a lot of contact time with me in the day (still BF by the way), wear him in a sling a lot, have 'naked hour' every evening etc, so he gets a good top-up of mama time. It really saved my sanity, my health was suffering, I'm not someone who can cosleep full time as I get significantly less sleep, so this approach worked for us.
I took quite a lot from Elizabeth Pantley's 'No Cry Sleep Solution' but didn't follow it strictly - too lazy :)