Doorway to Another Dimension

Imagine waking up a noticing that the bedsheets are a different color than they were when you fell asleep. How could it be possible? You've been laying in the same place all night and haven't moved. As you go about your day you begin to notice that there are other drastic changes, far more concerning than your bedsheet color occurring all around you inexplicably. That's exactly what Lerina Garcia Gordo claimed happened to her. Did she somehow slip into a parallel universe, or is there a more mortal explanation that can be drawn?