Yeah, I've found that the benefits are so incredibly numerous (as in, a relatively good night's sleep means I can accomplish more the next day). Wish I had some advice on getting it, but I can't do that here. However, has your hubby talked to his rheumy about getting onto the medical marijuana list? At least then he'd be able to get it legally. Although, I hear that the legal stuff sucks rocks.
Also, I would suggest that you invest in a ventilator. I find that after I smoke with one of these I'm not couch bound (as I am if I use my regular pipe), which means that I can do a bit of clean-up before I go to bed and I'm thinking clearly.
Just a suggestion.