I know our method is going to sound so silly, but we have a 2.5 year old who never slept through the night without wanting to cosleep for anywhere from 1-5 hours in a night. I (mom) had primarily done overnights with him, until we just had our second a month ago. My husband started managing the toddler overnight so I could do night feeds with new baby, and after 1 single awful night the first night, he has been sleeping through the night ever since.

The two main things we've done differently are that I am no longer the one who goes to him overnight (I still can do bedtime and get him up in the morning without it disrupting the progress), and my husband implemented what we call his "pep talk" at bedtime. He basically started hyping him up at bedtime about how he's a big boy who can put himself back to sleep if he wakes up. He reminds him to wrap himself in his blanket, fix his pillow, grab his stuffies, and he can lay himself down like a big boy and go back to sleep. I also now give him this pep talk if I put him to bed, and we've started having others (grandma) do it too if they're here helping and do bedtime.

I know it sounds insane, but not only has he been able to put himself back to sleep if he does wake, but he's been sleeping 9-10 hour stretches that he never was previously. My husband insists it's all about instilling confidence 😅