Bink began this mischief in this comic.

↓ Transcript
Panel 1: Lisa and Chloe nap on the couch. Bink, caped, sneaks up from behind the couch. He has a laptop.
Panel 2: Bink places the laptop on Lisa's lap.
Panel 3: Bink places Chloe's paw on the mouse.
Panel 4: Bink places Lisa's hand on the keyboard.
Panel 5: Lisa and Chloe are still sleeping, but are in WoW position.
Bink: Operation Sleep-WoW, a success!
Panel 6: Bink swishes away in his cape. Lisa and Chloe continue sleeping.