You know that thing where you’re lying down, still somewhat awake, and suddenly you’re having what can only be described as a strange fever dream? Apparently, that’s not a glitch. According to researchers, your brain was just doing its thing. Researchers at the Paris Brain Institute put 92 people in chairs, let them drift toward sleep , and then woke them up mid-drift to ask what was happening in their heads. The setup was lifted straight from Thomas Edison’s playbook: hold a bottle, fall asleep, drop the bottle, get jolted awake, report back. A second session used auditory alarms. Between the two, they racked up 420 reports, and what those reports revealed has been giving sleep researchers a lot to argue about ever since. Videos by VICE Here’s where it gets weird. The reports were sorted into four categories, and three make total sense for someone on the edge of sleep: scattered thoughts, waking observations, and deliberate mental to-do lists.…