Rules for sharing the bed with humans....

Dear George,
 I have been wondering whether I have been spoiling my humans. I allow them to share the bed with me? Will this give them ideas above their station and make them think they are my equals?
If letting them sleep on my bed at night is a bad idea, what alternatives are there? The sofa? Or perhaps just the carpet in the living room?
Please advise,
Yours
Coco

Dear Coca,
This is a dilemma common to all cats. It's good to be generous to our humans and, to be realistic, they wouldn't fit into those odd little beds that they bought for us. So share the bed, but do so in the right way. 
Here are my rules for bed sharing with humans.
1. Get on to the bed first and choose the position which suits you. They can fit themselves round you. The middle of the bed is yours. The edges are theirs.
2. Insist that they sleep without moving. If you own a couple of humans, discourage any thought of human sex by walking up the bed, sitting firmly near their heads on the pillow, and staring at them with utter disdain.
3. Make sure they do not take up too much room. By gently but firmly leaning against them, you can imperceptibly move them to the edge of the bed without even waking them.
4. The bottom of the bed is yours on hot nights, when their bodies give out too much heat. Spread yourself over their toes, which will be withdrawn giving you more space.
5. The top of the bed is yours if you enjoy waking and petting your human. A strong purr and some careful grooming of their fur will ensure they give you enough space.
6. The space between two human bodies is yours during cold nights. Too bad if they want to cuddle: they should have thought of that before they got a cat.
Sleep well.
Yours
George