These are a bit old, but I haven't caught Nora sleeping on her back recently. She'll roll on her back for pets, but it is only for a couple seconds. I just can't decide between the two. The vertical one I like b/c of the lighting, but the horizontal one has better coloring yet less contrast. For some reason I just could not get the two the same color. *grumble* They were both taken at the same time.