Ok, I cured my character of beast form. Vilkas likewise. My Breton married Vilkas. After sleep, I did not see the usual "you wake up well rested..." statement. Is this not something that pops up after being a werewolf. Anyone know?

Ok, I see the well rested in the menu so it works, just doesn't tell you it's working.

I think you have to sleep for 8+ hrs...