One time I had a dream in which I, but it wasn't really me more like some dude I was controlling, cryogenically froze himself into a bunker and woke up in the future where everywhere was a desert and people lived in colossal, futuristic, blue-colored pyramid-cities connected by wide highways and there was this group of strange cultists, or something like that, that had leatherish red skin, pitch black eyes, no teeth and wore red robes that believed society was getting too weak from living in comfort so they had a secret plan to hijack some nukes and blow up the pyramids and I was the only one knowing it, but since no one in the city believed me I had to infiltrate them to stop their plan, I was spying on them sparring with some high-tech spears and then I woke up.
Another time I had a nightmare about being at my grandparents's house, for some reason I've found a job in the Speedwagon foundation from Jojo's bizzarre adventure but here they were basically the SCP and they were setting up some sort of contaiment perimeter around the house.
Apparently the door for the bedroom lead to an underground hall with a typical american high school front entrance built at the end, this entrance was actually a portal to some sort of other dimension in which people enter alone and get out with a clone of themselves, albeit a slightly childish version, and when one of them says the words "We are even" the other disappears. I didn't entered the portal but instead I spent most of the time in the kitchen, having lunch while watching a video of Markiplier playing one of those crappy bootleg flash game on my old laptop, after a while my mother come in the room to tell me we were going back home, the enviroment was barely lit and she said a couple of times "We are even" out of nowhere while giving me one of those creepy Junji Ito-ish smiles, I woke up soon after.