Dreaming
The first part I remember was rather gamelike, running around and collecting powerup kind of devices. I remember they had a little switch on them, they'd give me whatever power they had when I flipped the switch, and then they'd disappear when I flipped it back. After grabbing one, Thane comes up to me and asks if he can have the used up one I just got before I make it disappear. So I give it to him.
Then it's not a game anymore, but school. We're walking around these labyrinthine halls, mostly just exploring, but also kind of losing our way. I remember feeling a bit weighed-down during this part of the dream, not able to move very quickly.
I wound up in a library. Architecture of the place looked very '70s, tall and narrow with exposed brick everywhere and gold-tinted glass. And at one end of the library, surrounded by floor-to-roof windows, was a giant hot tub...where I found a sex-ed-for-the-elderly class occurring.
And then Tim was, like, a high school PE instructor or something, and he was complaining about Nathan in ways that only make sense when you're dreaming.
Overall, not a terribly remarkable dream, but vivid enough to be of note. If I'm gonna start trying to go lucid again, I gotta be able to consistently remember my dreams first.