Rebbetzingoldennosepicker,
My kasha is, if MITZVOS TZRICHOS KAVANA, how does he and she have the proper kavana to be yotzeh the mitzva of ad dlo yada when asleep?
Even if you go to sleep, the maiseh mitzvah is still the drinking. Ad d’lo yoda is the shiur to be m’kayem the mitzvah. Going to sleep is just a heiche timtzi [insert thumb-swoop here] to reach that shiur (albeit not in the most mehudardike way). Therefore you only need kavanah for the drinking itself, not the sleeping.
Good kashe though.