I've heard cats hear octave(s) higher than humans... I could see this putting me to sleep especially if I was stoned. Magic Cat Music! Watch Your Cat Fall Asleep Before Your Eyes with Our Specially Designed Cat Music!
Was looking for that Resident Evil clip cause what I had posted had been taken down. Found it and when it ended this started playing next on youtube: And that original thing was this: However, this one looks more grainy.
I hear a lot of things too. If you can perceive it you can't prove it so I agree with the scientists. Cats are little shits, the tame ones play with birds and kill them for fun. i love birds and cats, but cats minds are on a different octave.