Little Man is demonstrating Downward Facing Dog. This is how he starts to lay down on the couch. First, Reach out front legs, stick butt in air, and wiggle back legs into a comfortable resting place.
The belly band doesn’t prevent me from getting comfy, but the arthritis in my back legs does. That is why I do the downward facing dog yoga position before I lay down, it is the easiest way for my legs to get where I want them.