If you don't see it, just ask. I have yet to find a resort at WDW that does not have distilled water. Have you asked your doctor if you can use regular bottled water for travel? I was told it's ok on occasion for very short term use as distilled water isn't so easy to come by some places in the world. My doctor said for this very occasional type of use, regular bottled water won't hurt my machine. If you're immunocompromised or frequently get upper respiratory tract infections, it might not be safe, but if not, it's worth asking your doctor about. It makes traveling a bit less complicated.