Hi!
Great question.
First and foremost, how much time do you spend on your couch? When you are on the couch are you in a place of power and do you great guests from that place? Do you feel as if you are royalty in your castle from your position on the couch? What is the essence of what you do when occupying the couch?
If you spend a lot of time (3 plus hours) on the couch, reading, watching tv, etc, then you may want to look into an image or representation of support at your back. If sometimes you conduct business, greet guests or spend a lot of time in that area than you would want to look into support. It sounds like you have made sure that when at your desk you are supported. It is important to ensure that you are supported in the areas that you work and sleep in, in theory, sleep being the primary place you receive night time qi. Your bed should have strong headboard to symbolize support.
Keep up the good work!
All the best!
Kat
