How did it impact? How did you handle it?
I'm fast approaching the breaking point with the sleep situation here, but I don't know how much of this problem is due to the ASD, and how much is just pure toddler stubbornness. If it's stubbornness, I'll deal with a few nights of screaming to break some of these habits, but if it's ASD, then I suspect I'm going to need some better strategy to deal with it.
He's still waking at least twice a night, and many nights will be up for an hour or more each time. At least a few times a week he doesn't go back to sleep at all after the 2nd waking, and that just starts my day off *really* badly (like today he was up somewhere around 5). We theoretically night-weaned back in September, but in reality that didn't last at all - since now he'll ask for milk (or cheese, or grapes, etc.) in the middle of the night, and I don't have it in me to deny him that if he is truly hungry. If I do deny him something he asked for (like if I tell him the milk bottle is empty, or say no when he asks for boobies), then he'll scream and a full-blown tantrum will ensue. And I suppose at that point I may as well get up and start the coffee pot because nobody's getting back to sleep (even DH can hear him at the opposite end of the house).
So, in your experience, is this just toddler-dom? Or is some of this related to the ASD? We don't even meet with the ABA therapist until next week, so I can't ask them yet, and I don't know how much longer I can hold out.