We don't know why we didn't think of it earlier! Last night, after evening turn-out, we crated Lady Flame. She regularly uses both crates, so into the larger crate she went for the night, but this time we locked the door. We got the first full night's sleep in a long time. Whoo... relief... In case you are thinking dog abuse, the crate is next to our bed, so we can hear if she needs anything.