Is it normal to do this every 16 hours or so?

Taking crystal meth will prevent this

It's called dreaming.

Sounds like a recurring dream.

I used to have one that was super weird; it was in fuzzy black and white like an old television screen, I could barely make out the picture because it was so dark and there was always little to no sound, and I could actually feel sensations (though they felt more like getting hit with a pillow than what was supposed to be happening in the dream). Most of the time, I wasn't quite 100% asleep yet, but pretty close. It was in the downtown area of the place I was born and currently reside, and I was under some bridges in the middle of a roadway on a turn. For some reason, I was in the middle of the road and couldn't move away. This old fashioned VW Beetle-type car would turn the corner slowly, come straight at me, and hit me. This would repeat maybe 3 or so times, with me trying various things to get the car's attention and make it stop. Every time I was hit, it would feel like a pillow smacking me in the face. I occasionally dreamed about that from the time I was maybe 3 or 4 to the time I was around 11.

Ya I go to sleep too

You inhale and exhale air.

Craziest shit I’ve ever read.