When to start sleep training

[abadoo]

DD2 is 12w. She had weight issues to start so has been tucked up in my bed. Now she is gaining well I'd like my bed back but she never sleeps for longer than 45-50 mins before she wakes unless tucked up with me. This means it's impossible to kick her out until she can resettle after 1 cycle.
I successfully used Andrea grace gentle sleep solution with ds1 but at 8m.

Has anyone tried sleep training a 12week baby? Most of what I've read suggests 4 months at the earliest for sleep training. Is there anything I can do now?

I know just need her to learn self styling but have no idea how to do this. Have tried the sleepy into cot idea but it goes from fussing to full blown hysteria and I don't want to do CIO. Naps are the same (in a sling she is great, in the cot 45 mins unless I go and resettle her)?

Just thought I would update to say I gave pick up put down a go at bedtime with DD - and the first night was okay (40 mins on/off crying but she did fall asleep in her cot) but since then she has been ill with a cold, vommed while crying etc etc and so I am going to go back to feeding / rocking for now and will try again when she is a bit older.

FWIW I have older DC too and I disagree with the idea that if you don't sleep train when they are small, it will be harder or more ingrained - with my DS1 changes worked and 'stuck' when he seemed to be ready, which for him was around 7 months.

I would say, give things a go but don't beat yourself up if it doesn't work - it may work if you try again in a few months time. All DC are different and also all parents have different tolerance levels so blanket statements like eg 'they have to self soothe before 5 months' are not helpful.

Kmini 4 - 5 months is notorious sleep regression time, so that might be why your LO is keen on rocking - another month or 2 and you may be able to make changes more easily.

Solemn I think most techniques are for 6 months + as that is when it is thought that babies can go 12 hours without food overnight. I have wondered if that is based more on babies weaned at 4 months, who would presumably be well established on solids then. I wonder how valid it would be for a baby who started BLW at 6 months?

I think you can sleep train but keep some night feeds as long as you put your baby back down awake after the feed has finished so as to be consistent I guess otherwise it isn't fair on the baby as too confusing. I think it can be worth a try but then give up and try again later if no improvements after 3-4 nights.

Solenne, yes do keep me posted

We are in night 3 of random long early evening feeding but am assuming it's yet another phase.

MrPop, your point re routines assuming 2 months of weaning is really interesting. I weaned ds1 at just about 6 months and at 8.5 he started sleeping through. I wonder....