I wish I could give you a visual to go along with this.
I woke up, sort of, and while still in the "mostly-asleep" stage changed my position on the bed. I was hazily aware of a slight resistance, and then of a soft PLOP nearby.
Alas! I had inadvertently shoved my little black cat off the bed.
She was so much asleep herself that she sat blinking on the floor for a couple of minutes while I stifled a fit of the giggles. She then turned around and looked at me owlishly, with disfavor and reproach.
And then she jumped back up on the bed. I tucked her under my arm and apologized. She purred.
This is why I love cats.