I can identify with that. Not that I considered it a nightmare, but I remember dreaming that I was awake in bed, with a giant spider staring at me and taking up the half of the room in front of me. I had a lot of those as a child.
Yeah definitely like that. I had a freaky one once or twice about turning over in bed and seeing a shriveled old lady just staring at me.
She grabbed my hand and pulled really hard so I turned back around, closed my eyes and waited for a while, completely terrified. And then I woke up or fell out of that dream or something. Eugh.