Hi JAY3! Thanks for the reply.
We have been doing the EASY now for almost 2 weeks, but it doesn't seem to be helping with the NW. I wonder if, rather than being on a 4 hour EASY, he should be on a 3 hour EASY? We previously tried a 3 1/2 EASY as well, but that didn't seem to help either.
Our LO is still really struggling with sleeping at night. Last night he woke up after 3 hours, took about 30 minutes of shh-pat to fall back asleep, then woke up after another 2 1/2 hours, and after that, woke up every hour subsequently. I eventually just got up and started the day at 7:00am.
We follow the EASY quite strictly (more as the "schedule" vs. "routine"), just so we can get it established. We have also tried to extend the last A time, following his cues, just to make sure that he's accumulated enough tiredness. It hasn't really changed his sleeping patterns at night though.
We tried to do the W2S, but sometimes he wakes up after 2 hours, rather than 3 ... so it doesn't really seem to be "habitual" per se (

)
I know that this isn't supposed to work overnight, but I think I expected things to change at least a bit. I don't see how he could sleep longer than 3 hours? Is it just a developmental thing that we'll have to endure, or is there something else that we could be doing?
Any help and insight will help!! Thanks so much!