What? I am very confused, since my subjective experience here is that nearly all the buildup happens like, immediately on waking; I don't have any gunk in my eyes the first time I wake up and then I have a lot the second time I wake up and then it dries in <1hr and then it's usually not a problem at all for the rest of the day. So how slow it is to dry for you is as surprising to me as anything else.