Half/Asleep Hallucinations Far Away From Home.

Like any _____, recurring ______ have invited many interpretations. This appears to be a series of events in my head:

I'm laying in bed. My eyes are closed though for some reason I can't sleep. I'm thinking too much I guess. A drip-drip-dripping on my head startles me and I open my eyes. Noises are leaking in through my ceiling. I sit up.
Spiders. They're crawling in through every crack and corner on the opposite side of the room. They're white, so white I can't see them. I can only see their shadows running and stopping. They're everywhere.
Being disgusted I turn and put my feet off the side of my bed. I step down and the carpet is wet. It squishes down and comes out between my toes. Wet with what? I don't know.
I sit back down and look at the door. I put my arm out to reach the door handle but it's already moving. Twisting, like someone is coming in slowly. A few seconds later it bursts open, slamming into the wall. It's dark and the light from my room barely penetrates outside. All I see is the silhouette of something moving. It's far away, but coming fast. It comes in the room and overtakes me, washes over me, and it's thick. I start swimming though through the muck of it all, I can't tell where I'm going. On my way out long strings of plants wrap around my legs, I twist and pull and they snap. I keep swimming and it seems to take forever.
At that moment I decide to give up. It leaks into my mouth and I happily breath it in. But I don't get the chance. Not a second later I'm at the top, I'm out of it, coughing and spitting, letting it spill out of me. There are green hills in front of me. I stagger out and start running towards them. It's not long until I'm panting and gasping for air.
I can feel it, right behind me, right at my ankles. I don't need to turn around. I can't slow down. I run right in between two of the hills and it doesn't follow. I can still hear it. I catch my breath and sit down. It's leaked into my eyes and I rub them to get it out. Everything goes fuzzy and I get a head rush.
Right in front of me, on the back of this hill, there's a tunnel. Not big. I lean in, pucker my mouth like I'm going to whistle, and blow into it. I'm echoed by a wind 100 times stronger. It blows through my hair and drags tears out the corner of my eyes. This tunnel is just big enough for me to crawl into, so I do. I crawl until it's dark enough, then I pull my knees up to my chest and close my eyes. I fall asleep.
What wakes me up is the drip-drip-dripping on my head. The noise. I open my eyes. I'm laying in bed.