This is Ruby. She's not a little fluff ball puppy anymore.
This is Ruby...she is getting v-e-r-y, v-e-r-y sleepy.
When Ruby gets sleepy, she thinks the human bed is her bed. The humans created a very bad precedent when she was a little fluff ball.
But Ruby thinks that if you are a very vicious guard dog and you keep the home and its inhabitants safe...sleeping in the bed is the least that can be done in gratitude.