@SpicyMoth oh he's goooorgeous!!!
We are actually in the middle of Ferberizing my son. He's very chunky for his age (almost 5 months) and was showing signs of randomly self settling so we decided it was time. Getting up every 45-90 minutes through the night was honestly making me suicidal, I'm not capable of dealing with such severe sleep deprivation.
We tried co-sleeping but it actually made things worse, being next to my boob made him wake up every 45 minutes looking for it anyway, it was awful. And when he couldn't find the boob within like 20 seconds, he would wake up fully and be awake for 1-2 hours.
He cried for 25 minutes the first night, 5 minutes the second night, zero complaints on night three, and only some whingeing (no crying or tears) on night 4.
He still wakes up for a feed at 2am and 4.30am on the dot but he sleeps through 18.30 - 2am. Ferber says to not even feed them but I don't think my son is ready for that. I feed and he goes straight back to sleep so I reckon I get a good 6 broken hours of sleep now.
If I don't let him "self-settle", it actually takes at least an hour of rocking and singing to put him to sleep so this is a huge improvement.
There's a lot of negativity around "sleep training" nowadays so I thought I'd share this here if anyone else is thinking about it.
I have read that sleep training earlier rather than later is quicker. When they hit 7-8 months they get smarter and there's a lot more tears involved.