I used to dream I woke up, showered, dressed, and preparing to go out to uni, only to wake up and realizing I was already late. I've also dreamed that I'm going to bed, but that seems to have little narrative purpose, so it has only happened a few times in my life.
I get a variation on this frequently. I'll dream I was sleeping and woke up and was late for something, then I'll wake up for real, heart racing, ready to scramble my way out of the house, only to realize it's 4:30 AM or some shit. At that point I'm just up, there's no recovering from that.
Yes. It sucks since dream you doesn't have a biological mechanism to go to sleep so you just... toss and turn in bed being unable to fall asleep. While sleeping. It's very confusing. Or! You keep falling asleep everywhere in the dream, but don't get any rest.
Yes, I had two of these weird dreams or more like nightmares when I wake up, realize that I'm still in a dream, wake myself up, still in a dream do it again, again and again, and after a long time, I finally wake up in real life. It was a nightmare because it was so boring and because it gave the feeling that I couldn't escape my dream.