I don't know if you are into alternative heatlh stuff, but have you considered a chiropractor or acupuncture for Ari's sleep issues? Supposedly, and I've never tried acupuncture - I've only read about it, acupuncture can help if there is a digestive or nervous system issue. Chiropractors can also help with a number of issues.
It might be something to think about if you aren't opposed to those types of things.
Re: webmistress
I actually have been seeing a chiropractor for years after a bad car accident. I suggested taking DS to him when he had torticollis & DH wasn't uh, convinced. He's not into that kind of thing, but he did agree to go see the chiropractor himself just last night.
I never thought of either for Ari's sleep issues, but you may be on to something! :: runs to google ::