I remember with Cassie...we had the mother's owner rub a towel all over the mama dog, and then Cassie slept with the towel....it worked pretty well....We did the same thing with Boomer, and it didn't work. He whined a lot the first night and then for a couple of hours the second night, and the third was better. It might help to cover one end...so she can't see out, too....There have been times we've had to put Boomer in his crate for one reason or the other, and we put a towel over the end with the door, and he calms down.