My first comment is that the author is in desperate need of a friend to proofread her work before posting it. I can't even count the number of times I slapped my forehead in disgust at the misspelling of Mulder ("Muller") or J. Edgar Hoover Building ("Hover Building"). It's these little errors that keep this site from being one of the best. I tremendously hate being the nitpicker, who complains about these simple typos, but they stand out so clearly and make all the hard work put into the episode look truly unprofessional. (I'm very anal about spelling and grammar and believe that anything published should be the same.)
The author described the Sandman as constantly giving our agents the, as my dad would say, 'heebie-jeebies.' I, as the reader, didn't get that message. Maybe more effort should have been put into describing our villain of the story to give the audience a better idea of why he actually made Mulder and Scully automatically know that he was the bad man in the case. Reading, I imagined him as my grandfather, instead of someone who could allow you to kill off your friends and family in your dreams just by touching you. Taking lessons from Stephen King's Thinner, whose gypsy visited my nightmares for days, may help make your bad guys more believable.
Now that I've pointed out all the negative things, I'd like to say that I loved the X-File and how everything flowed quite nicely. The way Scully tried to give up caffeine proved correct with what I believe every doctor should do. (I've given up caffeine as well and I have never been happier.) The lack of coffee for our G-woman also showed, like Chris Carter often does on the show, her strong nature and will power. This detail helped to add to the overall feel that I was reading an explanation of an 'X-Files' episode.
I give this episode an eight out of ten, lacking only in the department of spelling and the Sandman description. Having the opportunity to read it was great and I hope I will be able to see many more from this author on the XFVS website in the future.