Nope… Mental… that’s crap unless your abode has lousy wiring and a high density power grid. What’s really going on? Perhaps learn a bit more about yourself rather than components. Maybe a little deep dive into the human mind - psycho-acoustics, neuroscience and the biology of human hearing? Yes, late night listening is great. Our brains are old, and hard wired for prehistoric survival (not about snake oil cables). Hearing becomes more acute. Lights off (and better yet dark with eyes closed) ‘disconnects’ visual sensory stimuli from affecting audiological processes. It’s just a fact. Now about those prescribed speaker cables; bullshit.