How does someone not realize they’ve dropped 5k feet? Unless it was a slow sink rate - but - shouldn’t they have been on auto-pilot? Boeing planes have an altitude deviation alert at 700’ +/- when auto is selected. You drop and it’ll bark at you. Naps aren’t that big a deal though. Canadian pilots are authorized power naps (just saying). ATC should have been monitoring and call ... anyway there has to be more to the story than the knee jerk reporting as they usually do...
Don’t be judgmental. Support Sisterhood!
After all, she just overlooked one switch and that cockpit is sooo confusing.