Sleepless-
Thanks for the feedback-- good to hear that you are progressing! Once you settle into a suitable mask you will really start to appreciate the xpap! (and so will your wife! ) Just keep with it until you get a good, and comfortable, setup for your needs. (You seem to have a good DME, lots of them will not let you try on different masks, let alone take one home and actually try it out.)
Ann