My therapist's office has a long L-shaped couch (or it might be 2 couches), plus a nice chair (I think it reclines) and the T's chair (and one other chair too I think). Some of his clients pick the chair, but I always sit at one end of the sofa and am directly across from him (yes, his chair is next to the door but doesn't block it of course). I occasionally kick off my shoes and pull my feet up beside me, but I've never lain down. I think it would be uncomfortable to lie down because it'd feel out of place and it'd be difficult to see him. Somehow I doubt his clients lie on the couch, and he's never suggested that I do that. Though he did offer me a blanket once in group when I'd put my sweater over my legs. It was an awesome down blanket. I would have liked to wrap up completely in it, but that'd probably put me to sleep. He has big comfy pillows on his couch too. I'm in that same office for group therapy, but then I sit at the other end of the L couch. I occasionally move to the middle of the other side of the L when there are fewer people present, but I never sit where I sit for individual. And he sits in a different place for group too. Actually I'm realizing that I'm still sitting across from him since we both moved in group.

I guess I like being across from him though the first time I took that spot it was just because it was the only one left (and I'm a creature of habit so I stick with the same spot).
Sidony
P.S. I like that he specifically told me that the room arrangement would be a little different in group therapy, so it didn't seem strange to me when I walked in and he was in a different-than-usual place.