That reminds me of my Shadow (RIP 1994) who every morning at 5:30-6 came into our bedroom, jumped on the bed and proceeded to pull the chains of our wall sconce lights to wake us up. Then, in case we didn't get it, pulled again to turn them off... and guess what happened next?
My baby-cat comes into my room if I stay up little too late, starts either meowing or staring at me as if saying "time for bed, mommy". Of course, she'll walk away as soon as I go to sleep. She may be simply telling me to "turn this light off, it's too bright"? IDK...wonder if the cat on this youtube video may want to tell the same thing