I am comfortable in a 40' DP with a Jeep to carry my yacht, two bicycles, and fishing gear.
I suspect I could be comfortable in a 20' trailer PROVIDING it has a comfy and roomy toilet (my reading room), a big enough shower for me to spread out a bit, one very comfortable chair, space to carry all my toys/junk, enough capacity to carry plenty of food and water for two week stints, and enough roof space to install plenty of solar panels.
My cat is not giving me an intelligent answer to the question so I'm not exactly sure what he thinks.