Helping 9 month old stay sleeping after "cot drop"

[13Iggis]

Ds2 has never slept through, best has been 2 wakings a night but now it's back up to about 5.
I have recently had to put the side back on his cot, which is next to our bed, as he had started crawling out. He hates this, and although will sleep in it during the evening, I'm sure he smells me come into the room and just wants in with me. I let him sleep with me for about an hour in the morning, but more than that and my arm/hand gets really sore, and I need to not just lie on one side (can't put him near DH).
So, I lift him, feed him, put him back down as slooowly as possible, keep arms round him a bit, then just as slowly withdraw - and he wakes and cries.

Any tips, before I lose all semblance of sanity?
TIA

Move his cot out? I had to do this with dd around a similar age. There's also a sleep regression around 9 months.

have you tried shush/pat? I didn't think it would work on dd who had only previously been fed to sleep but it does (usually as long as she's actually tired). Even putting a hand on her back and doing long quiet shushing sounds can work but the nearer it is to morning the more resistant she is. She can go from fury to asleep in less than five mins. If I'm lucky.

Thank you both
I've haven't tried just patting, will give it a go. Since posting I've re-read my No Cry Sleep Solution, and have been trying some ideas from that. Putting him back in the cot and keeping my arms round him for a few minutes seems to help (have to put cot side down to do this and it is noisy when it goes back up, unfortunately). He was up/down for an hour and a half last night, and in addition had to "normal" wakings (where he was fed and went back to sleep). Feel really bad that I had succeeded in stopping feeding him in the night, and now am right back where I started now the cot side is back up. Wish I hadn't given in.
Iggly I think he would probably be better moved out - ds1 certainly started sleeping a bit better when he was moved out around 7 months. But currently in a 2 bed flat, would need to move his brother into some kind of high sleeper above the cot and wanted to wait till he's 6 in the summer to do that.
(Or get dh to commit to a house move, whichever comes first!)
Sorry am rambling. He is napping now so I should really sleep, but I don't want to sleep now, I want to sleep at night!

2 normal wakings

Sleep!

I did!
Tried something different last night, put DH on the side of the bed nearest the cot and made him at least go shush shush when ds woke up. Hoping he would see his dad, think bugger there's no milk, and go back to sleep.
Well that didn't really work, he was still up five times but strangely I slept better in the gaps, just from being a bit further away and not responding to every noise. I suppose my sleep gets disturbed by every roll or noise he makes, whereas last night I only woke when he clearly sat up or made a louder noise.
The night before I had been trying to sleep on the floor behind the bed, so he couldn't see me getting back into bed after a loo trip, so anything has to be an improvement on that!