My cat sprawls out when he is next to me or in a relatively close approximation of my location. I can't imagine that he sprawls out when I'm not home since I usually see him emerging from the basement when I arrive, probably from some crack in a pile of clutter (he has to share the house with an overly attentive hound). But
@Bob-Carabbio, who I will refer to as 'the rabbio' going forward, does bring up a good point in mentioning HaMakom, The Place, along with the astute observation given from the vantage point of your treelimb, challenges me to be more cognizant of whether I am stretching out or curling up to fortify and guard my guts.
But, similar to
@seoulsearch, I'm most comfortable with my knees drawn up to my chest, sitting on the floor (it might be an Asian thing). Even when sitting in a chair I have a tendency to draw up one knee or the other, maybe for a hug, idk, or maybe it is for the extra warmth being that I'm more sensitive to chill so that 'chilling out' doesn't appeal to me as much as 'warming up' does. However, I'm not sure if that speaks toward me more than it speaks toward the condition of the world.
With that said, I just realized that my happy place is my nuzzling my nose into my cat's fur without experiencing any serious allergic reactions, and his graciously tolerating it.