One of those dreams

"You ever have one of those dreams," Ike began.
"One of what dreams?" asked Warren.
"The ones where ... shit, I dunno. It's hard to explain. It's like you dream you're falling, right."
"Right."
"But you're not falling, you know. But you dream you are, so you think you are, 'cause you're not really asleep, you know?"
"Not really ... " Warren scratched his head. "Let me get this straight. You have dreams where you're falling. But you're still in bed ... barely awake enough to think the dream is real and that you're actually falling?"
"Yeah, man! Exactly."
"Okay ... so what about it?"
"It's weird, you know," Ike continued, "like if you hear something, or do something in the dream that would wake you up if you weren't dreaming."
"Like when I dream my alarm goes off, so I wake up to turn it off and realize it won't go off for another hour?"
"Shit yeah, man. Exactly like that. Only, you dream the alarm is going off, and you wake up and it is going off."
"Or you dream you're falling, and wake up as you fall out of bed?" Warren asked, feeling like he was finally understanding where Ike was going with this.
"Yeah, just like that. Or like if you dreamed we were talking like this, and I start saying 'Warren! Wake up!' in your dream."
Warren shuddered
"And then I'd put my hand on your shoulder and shake you, and keep shouting 'Warren! Wake up!' at you."

"Warren! Wake up! Come on, man. We're gonna miss the train!"
Warren rubbed the sleep out of his eyes before sitting up. "Man, I just had the weirdest dream ..."