I've been working on an idea of mine for a while now, and while it can be classified as a collection of short stories without a doubt, I can't distinguish what would lean this story more into the sci-fi, supernatural, or fantasy genre. (I've also heard of cosmic horror, but only a few stories in...
That sounds like quite a story that I would absolute pick up off the shelf. I can't believe your nightmare was that vivid! I used to do the same when I needed inspiration (not with alcohol, I'm underage), but lately I'm unable to eat right before bed and I'd still like some ideas to write down...