Every night for the past few nights, she's woken up every couple of hours to be like, Hey, what's that awesome thing I learned to do? Oh right. And then it's ten minutes of snorting and grunting while she tries to exercise dominion over her own hand, and then I feed her because while I don't want to get her used to eating all the time at night, I DO want her to shut up and go to sleep.
But she's napping now, and TWICE she's squawked, but before I've gotten down the hallway, she's subsided into silence. This may become a useful trick after all.