I'm fairly sure that the bear we see her sleeping with in Witness is the bear that Clark won for her at the fair in Green, Green Glow of Home.
She never named it in the show, far as I recall, so that it's called Clarkie is fanon, I think. (Although, now that I've said that I'm less sure.
)
Ah, a divider wall makes some sort of sense, I guess. Although it would still be just a tad too open plan for my tastes.
LabRat