Dreaming while awake

It was 3 am and I was having a nightmare.

For some unknown reason, I am delivering a package - a book actually, wrapped in a box - to a house. Upon arriving at the house, I discover that the place has been abandoned and all of the windows were left open . I go up the stairs and stand on the porch where I can clearly see through the flapping curtains that the house is infested with insects. All different kinds of insects. And they are everywhere. Blanketing almost every surface.

I look over my left shoulder and see a huge spider web with a spider the size of a football guarding the porch entrance. How I managed to get past the spider without noticing it, I do not know. What I do know is that I am terrified. And I can now feel bugs crawling all over me. I wake up immediately swatting insects under the covers. I calm down after realizing that it was all just a nightmare.

As I am laying there, I groggily look above me where I see a HUGE spider perched on top of my headboard. I leap out of bed and turn on the light. There is nothing there. After staring for a few moments to be sure, I get back in bed and turn out the light. I look up again at the same spot and I see a HUGE water bug moving its tentacles. I leap out of bed a second time and turn on the light. There's still nothing there.

I come to the conclusion that even though I am awake and alert, that some part of my brain must still be dreaming. I get back in bed, turn out the light and take one more look at my headboard. Satisfied that the creepy crawlies are only in my dreams, I go back to sleep.