I've had a think and I like the Barney because of the size but because of the shelf and the house, the only place for the wheel would be next to the house which would make it a little more cramped whereas there is a lot more room for the wheel in the Alaska, and I can swap the shelf out for her current shelf because she loves the bed she has at the moment and really doesn't like it when I change it. I think i'll get the Alaska. Thanks guys