Challenge 2.2: Option 3

In a world where the laws of physics are slightly different, a "chair" is not something you sit on, but something that sits on you. It's a sentient, sassy piece of furniture with an attitude problem. You must design a chair that not only accommodates this new paradigm, but also makes the chair happy. Happy enough, at least.
Design 1: The Chair-in-Chief
Design 2: The Autonomous Furniture Uprising
Design 3: The Self-Sustaining Sit-Fest