And as a result of that incident the procedures have changed, now a cabin crew member (or relief pilot in long haul ops) joins the other pilot in the cockpit if

And as a result of that incident the procedures have changed, now a cabin crew member (or relief pilot in long haul ops) joins the other pilot in the cockpit if one has to go to the bathroom. A similar procedure already exists for controlled rest in oceanic cruise flight at certain times, using the cabin crew to ensure the remaining pilot was checked to be awake every 20 minutes.