Two things bring cats out of a dead sleep: the sound of a can opener and the vibe of a new box in the house. They are powerless over the box ... and if there's stray packing tape hanging off one of sides, even better.
I have the math to prove it:
If a box is traveling into the house at 2 miles and hour and a cat is sleeping at 0 miles per hour, how long will it take for the cat to inhabit the box? (answer below)