hehe, I enjoy that site (sleepsex.org) and how it explains the condition as "embarassing".
Embarassing? What's so embarassing about it? Unless you're a couple who's against oral sex and havin fun in the sack aside from the standard missionary position, seems like a fun thing to have!
"Oh my GOD, Bertha. You're masturbating in your sleep... how god awful and DISGUSTING."