We, too, have a king sized bed. We bought it originally because my husband is 6'2" and doesn't really fit on a queen or a double, but having space not to touch has been a bonus. I have fibromyalgia, and cuddling can cause pain if we do it for very long. The big bed is also helpful because it means we can each have our own blankets. Our internal thermostats run very differently, especially now that I've hit perimenopause.