In reply to FreshSlate:
My whippet cannot be left anywhere alone at all. That is anywhere... except one place... the back of my Landrover. If I leave her at home she works herself to a total frenzy. Leave her with anyone but a very select few she just doesn't relax.
So, these days I've got a little 'hot pocket' sleeping bag thing I made for her. She loves to get inside it. And she will happily sleep for hours and hours in the back of the Landrover. So she comes with me everywhere.
I have often wondered what others must think if they notice her in there. Which is unlikely given I make it fairly tricky to see her. But then I think... who cares? So long as she is relaxed and happy... then that's the best thing to do.