Sometimes when I am going to sleep I realize I can't hear anything and then about two seconds after that thought enters my brain it's like my air conditioner turns back on. Is this the beginning of sleep paralysis?

My second question is I was going to sleep, but I just happened to be picturing something in my head at the time and all of a sudden the thought seemed almost real. I was waiting for it to become as real as possible and then I just kinda entered it, but I guess I didn't wait long enough because it immediately blew up. Is this a WILD?