See, here Huggies are always the way to go. I hate Pampers! Whenever one of my kids start leaking I just use the next size up at night, and it helps.
I have a friend who used to lay a clean, dry washcloth on her son's penis at night time, and then put the diaper on.
Part of it is age, too... they are nursing a lot at night right now, so they pee a lot at night. When the NFs start to space out, you will find that the wetness starts to not be as much of an issue.