Lee - call her doctor TODAY! Please. This is really abnormal. I had a roomate in college who did this - slept 20 hours a day - we thought she was just sad about a breakup - she went home for Xmas and tried to commit suicide!
Bring your wife her thyroid pills every day if you have to. Don't worry if she gets mad at you, as long as she takes them. Quit trying to get her to get up and do things - she can't right now, and from her point of view, it just shows that you don't understand how horrible she feels.
