Night Time Potty Training...training who, exactly?

The other day Keith informed me that we were down to one pull-up. Suddenly feeling very stingy and annoyed at the money we are spending on pull-ups (let alone the fact that pee-soaked pull-ups just do NOT smell good--sorry to be graphic, folks, but it's true), I decided we should bite the bullet and try to work with Hannah on night time potty training. The first night, we talked with Hannah about what we were planning, trying to make it sound really exciting and "big girl"-ish. We limited liquids, woke her up before we went to bed, and then woke her up one more time in the early morning. After all that, we were pleasantly surprised to find her dry in the morning, even in spite of her sleeping later than usual (I thought this was due to the fact that she wasn't sleeping in her own urine, a fact that would later prove to be untrue.) Hooray! We did it! The night-time potty training was successful! And after only one night! That day my friend Marisa and her girls came over to play, and Marisa encouraged me by saying that her daughter never wet the bed after that first night! Wow! Okay! (You can tell by the exclamation marks that this was good news to me.)
The next night we followed a similar routine, although in attempting to get Hannah to use the toilet in the middle of the night, she resisted & complained that she didn't have to go. This turned into a pretty loud fight as Keith tried to sit her on the toilet anyway. I guess it makes sense that she might be frustrated, as I later read in a book on potty training "few adults would appreciate being dragged out of bed, plunked dazed and blinking on the commode, and commanded to excrete" (Alison Mack, Toilet Learning, pg. 56.) Okay, fair enough. But later that night, when Keith tried again, Hannah was soaked. Oddly enough, this did not wake her up! (Hence, the disproving of my earlier theory.) This has happened two more nights in a row now, and I'm starting to wonder if it's true that (like daytime potty-training) kids will potty train at night when they're ready. Hmmm...but I really don't want to buy any more pull-ups.
Again, I ask: Who will really be trained when/if we complete this process at this point?

I don't have time to answer that--I need to do the bedding laundry for the millionth time and set some hourly alarms for tonight.