I remember when this came out.  We were well past the point of "found footage" being novel.  The Blair Witch Project was already old enough it get a learner's permit, and since then television has used the found footage method of filming so much it felt kind of tired and gimmicky, even back in 2015.

So I didn't go into this episode feeling exactly optimistic.  With Moffat kind of falling into some bad habits as a writer by this time to the point I was really starting to feel he had overstayed his welcome (this of course being before his series ten renaissance), I came into this episode not exactly expecting the best, yet it feels so much worse on reflection.

The monsters aren't scary and the explanation behind them is pure silliness.  The concept of people losing their sleep seemed intriguing, and I thought there would be some cool twist to connect people not sleeping to the scary stuff.  Yet that connection is weak as can be.  It's the eye boogers!  I just can't take this story seriously.  And it doesn't help that the whole thing ends on the villain spreading the horror through the footage of this episode.  That felt so cliche.

Not to mention this one is full of Moffatisms.  That means there are constant quips, frantic energy, and the politics are broad and obvious.  Colour me thoroughly unimpressed.