I'm a bit more composed than I was earlier today.
Ezzo as in Gary Ezzo, author of "Becoming Babywise."
DH was the one who brought it up - thinks the only thing we can improve at this point is to put DS2 on a strict day schedule, a la "Babywise." So ... DS2 will feed at 5:30am (or when he wakes), 9:30am, 1:30pm, 5:30pm, and 9:30pm. He'd better take full feedings b/c those are the only times he'll be fed. When solids are introduced they'll be added only at those times of the day. He will take two strictly scheduled naps of no more than 2 hours each. Today is the first day of all this, so following the food schedule exactly, but letting the naps fall where they may (as he's so tired!!). Will wake him after an hour and a half nap this morning, then will let him go 2 hours somewhere I hope between 1:30 and 5:30 feedings rather than 5:30 & 9:30pm, but we'll see what he does. I'll have to tweak the naps over time to work for him.
That's it. Don't expect him to sleep through tonight necessarily, but after a week of this we should be seeing some improvement - I HOPE!!!!!
Ezzo's book is rife with implications of baby's not sleeping through the night at this age - it's about him, mostly, not about our sleep deprivation - higher IQ over time with good sleep, better self-esteem over time due to continuity, etc. etc. Sigh. Sigh. We'll just see if this works