Hellobee Boards

Not through the night as in no wakings. I think they both would do 5 hours by then? dS1 truly sttn at 8-9m. Ds2 not until we weaned at 14m.

Technically at 12 weeks, yes I think she maybe did it for a week or two. But her 5 hr stretch was like 7pm to midnight, i.e. useless, and she started the 4 month sleep regression really soon after that, which was hell on earth for close to 2 months.

Yes but I know I was lucky! Right at 8 weeks my LO slept 8 hour stretches and by 12 weeks was 10+.

My son STTN at 13 weeks. He was born 3 weeks early FWIW. Before that, he was FEEDING every 1.5-3 hours, it was agony! He's 20 weeks now and I see no sign of regression.. yet. He sleeps 7:30-3:30/ 5am. It's so wonderful!!

Here's what worked for us (tho I understand some babies just sleep better)
LOTS of naps- sleep begets sleep. No napping after 5:30
consistent bedtime routine
early bedtime 7pm
"tank him up" with a long feeding right before bed
white noise
Halo SleepSack swaddle since literally Day 1
he's awake but drowsy when we put him down- shushing and pacifier to ease him into sleep for a max of 5 minutes.
sleeps alone in his bassinet, next to our bed

Apparently I birth great sleepers (knock on all the woods for this third baby!!!!)
L SSTN (10 - 7) from 12 weeks on (with a couple bad weeks here and there, but nothing too awful)
K STTN (9-6) from 7 weeks on (she had a bad couple weeks somewhere around 4/5 months where it was a 2-hour awake period in the middle of the night, but thankfully that wrapped up eventually!)

And I know a lot of people contribute formula to better sleeping, so... that may be a reason? But my SIL BF her 3 kids and they all STTN early on as well.

No way. My kid didn't STTN until 17 months.

Yes, DD was sleeping 8 hours a night by 6ish weeks. I'm so lucky, and afraid of how this next baby will be, we've been spoiled!

I had a "unicorn" baby who slept through the night starting at 12 weeks. The trick for us was the Miracle Blanket, a white noise machine, a bedtime routine with a bath every night, and a tank-up feed (5-6 oz of breastmilk) right before bed. I tried all of these things on the same night and miraculously he slept all through the night without any wakings so I just kept doing all of those things every night for a long time.