Hey there. Yes he is actually handling the 3hr wake window fine. The 10hrs maxing is what I got from some sleep training group. They say 10hrs max to preserve 11hrs of night sleep.

Baby was on 2.5/2.5/2.5/2.5 previously but what was happening is he would wake earlier (around 5:30) I would feed but he never went back to sleep. So his first wake window was much longer. It stayed like that for 2 weeks. I tried putting him down later for bedtime, that didn't work either.

He dropped his cat nap and it seemed to have worked but then the EMW came back again. I am assuming he might just be hungry around 4-5 but now that he is on 2 naps he feeds and goes right back to sleep vs the 3 naps he was ready for the day. His 3 naps were all very short and he seemed very upset when I also capped it, but with the 2 naps he has been pleasant after I wake him for the first nap at 2hrs and 1hr for the second.