Close the bedroom door. Sammy did the same thing last night and she is otherwise trained. It was the one night in months I did not close the door. She won't do it in the bedroom, she will scratch at the door.
We have bells up which Loki will ring if he needs to go out in the middle of the night. Then he will come up here and lick my face to wake me up. I
Loki.
Sammy is learning though, every week is a small improvement.