When Hallie and Annie are fighting with the light in the cabin, because Hallie is trying to go to sleep and Annie wants to write in her journal, Hallie turns sits up and turns the light off, then it goes to when Annie turns it off and about a second later, Hallie sits up again. You only have to sit up once.
That's because Hallie sits up to reach the light switch the first time, then she lays back down to go to sleep, then she sits up again because Annie turned the light back on. Not a slip-up.