Tough question for a two week stay in a hotel. I'm not sure why you are leaking. I periodically use Abena Abriform XPlus with plastic pants over them when I travel and haven't had an issue. I thought the Tena Maxi Slip were just as good. You could bring a large changing pad and sleep on that. It wouldn't work for me, though, because I move around a lot. An alternative would be to use cloth diapers, which is what I usually do when on a relatively short trip (three nights or less). More difficult on longer trips because the diapers begin to "ripen" and if you rinse them out, they are heavy for luggage. At times, I'll use the hotel laundry service for my diapers. That's the easiest solution for longer trips.
Lou