Sleep No More crumbled under the weight of multiple character viewpoints that were too easy to dismiss because we were never allowed to get to know any of these people. Theres a reason a found footage story is often focused through a single camera. When you keep switching from one narrator to another the story collapses into confusion. I suppose you could argue the dust was a single entity made up of component parts like a body filtering its experiences through separate cells that make up a whole. Perhaps what we experienced was the multi-faceted vision of an overlying consciousness but like everything else in this story that was never made clear. Perhaps Rasmussens breaks into the narrative to explain a plot point were intended as a kind of glue to bind the structure of the story together but if so it wasnt successful. There were already too many perspectives to keep track of and Rasmussens appearances felt jarring. They broke us out of the story rather than moving things along and it was difficult to settle back in and pay attention to the next bit.