Well, I'm there with you, girls! Just to reiterate, BW is all about having a consistent ROUTINE (as opposed to a consistent SCHEDULE). So, I wouldn't worry too much, DM, about your lo not going down by 10:00 AM if he's still going strong at 9:45, kwim? It's all about watching and knowing your los behavior and cries so you can act/react accordingly. So, I think it's a good thing that we can be flexible with our time-table, depending on our various schedule of activities, chores, etc. Good call, Grants, with letting your lo sleep longer if you are planning an outing.
About being OT/OS when going down to 1 nap. Yes, they can still get OT/OS, even though total nap time is the same, mainly because they are getting all their stimulation in one longer segment of time, vs getting that stimulation with a nap break in between. So, it might have been the reason for your NWs. Although, it is strange that your lo woke up several times in the night. He could be teething or maybe he is growing through 9 month GS? How is he eating or formula/bm consumption during the day? Is he 9 months? (Sorry, I didn't know your DS's age...) I think the reason for my NWs the other night might have been out of hunger since I noticed my bm supply has gone down. . .but that's sort of off topic here, isn't it? Sorry.
And DM, if your lo is waking at 1:30 getting ready to party, he might not have been tired enough. Maybe UT/US? What did you do that day? KWYM about hating to wake our los, though. Especially that morning nap, I dread going in after 30 minutes to wake him, but if I don't, his PM nap is REALLY late, and then it does ruin BT. But, how's he doing with actually going down on his own after standing in his cot?
I've decided that my lo KNOWS HOW to do it. He chooses not to, sometimes, because on some occasions, he'll sit back down, lay back down, and go back to sleep. On other occasions, he just stands there and cries and wants me. So, I know I'm not supposed to take him to bed with me, (and honestly with DD1, she NEVER did that and still never has), but with 2 los, only 1.5 years apart, I'm so darn tired that I cheat a little. But, Grants, I hate doing it, and in the end, I'm always worried about rolling over DS or having him, worse, fall OFF the bed. It gets a little crazy with two, managing both nap schedules and nighttime sleep routines. It seems one of them is always UT while the other is always OT just because for the most part, I try to coordinate their sleep times, otherwise, I would never get out! But, I am also convinced that my los communicate with each other telepathically, because when 1 has a bad nap or bad night sleep, so does the other! But, it DOES get easier once they transition to 1 nap and they are older and are much better at independent sleep.
Okay, gotta go. Believe it or not, both los are asleep now, and I'd better get started on dinner prep. Multi-tasking.