I'm desperate!! DS2 is 15 months old and I really need him to sleep and also wean off breastmilk.
I went back to work last September and made the mistake of not sleep training him before my maternity leave ended...and I feel like a zombie at work now :(
At the time DS2 also had some health issues and had been in the hospital a couple of times and I felt I really didn't want to stress him out by trying to get him to sleep on his own. Since then, it has always been easier to co-sleep and feed him through the night than be awake trying to sleep train him. DH is very good and will take him to the spare room on most nights, but that just means we both are constantly exhausted.
Currently, DS2 feeds to sleep about 7:30 pm and then will wake around 10pm for a 6 ounce bottle. We only give him the bottle with the hope of getting him through the night, but he wakes again at midnight. At this point he will come into our bed and from then on will wake multiple times. I don't know exactly how many times as I never check the time and it's easier to just turn on my side and offer him a boob.
Ideally, I would like him to take a bottle at bed time, then sleep through the night, in his cot in the spare room. Is that possible or is it too much change in one go??? We would like him to share a room woth DS1, but I don't know if I should first sleep train him in the spare room and then move him to DS1's room or train in DS1's room itself 
During the day he either has 2 short naps or 1 long nap. He goes to a childminder and usually naps in the pram during the school run. At home, he naps in his cot, but neesa to be rocked to sleep.
He also takes a dummy.
Sorry for the very long post, but I'm hoping for some tips and advice and wanted to provide all the info.
I really need him to sleep... In my head, everything depends on it. Once he sleeps, I'll have more energy for everything else that I've put on hold because I'm just too tired 😞
TIA!