I want to be asleep

My dreams are tiring. No matter what happens in them, majority of time I wake up with beating heart, in cold sweat. Yet I still prefer them over staying awake. 

My file is not that stressful, yet each day I wish to stay asleep forever more. 

Because even if they are tiring, they have such... vibe to them. This feeling that I can't describe, but it's a positive one. Something akin to thinking about a TV show you watched as a kid, but not remember it's name. And when you somehow find it, it's much worse than you remember. My dreams also lose their "spark" when I begin writing them down or try to make a story around them. 

They cannot be touched in any way if you don't want them to crumble. Yet I want to experience more of them.