Mr. Beans, perhaps you accidentally edged her off the bed last night? Now, we all hope she just gave up and decided to sleep there, but check for injuries. Maybe she decided she wasn't worthy to sleep with you and chose the floor of her own volition? Anyway, it is never a good idea to search for a hoomin. Making a loud noise and calling out is definitely the way yo go.
Yup - go easy Beans. Maybe she is actually doing something useful - for you.
What a sweet mouf on Mr. Beans!