Oh geeze Zoom, I feel for you. That's one big dang cast and I hope you got a sling with that. Stinks having to sleep in a position you don't like, it kinda feels like you wreck your good nights sleep. However wine and...ehem...other activities...may make up for that.

I tend to agree with seeking out another opinion on the activity allowed and I do believe that being/keeping active helps with healing, BUT only if it doesn't cause pain. When I was recovering from heart surgery I was cleared to ride a stationary bike about 10 days post surgery and I rode outside on my real bike at the 4 week mark. The breastbone is a whole different animal than an arm bone and since I am no Doc I'd make sure that one or two more Doc's agreed on a level of activity before I proceeded with it. I had different weight lifting/pulling/pushing restrictions along the way and if I unintentionally violated that I knew about it right away. Don't hurt yourself further.

Hopefully the time will pass quicker than you think it might.