What about the toddler size Mother-Ease? The ones that are bigger than L Sandy's? I've never used them, but I've heard they are enormous. And I would assume they would be available with the stay-dry doubler. I also have a friend who uses the Happy Heiny's L pull-on pant on her 45lb 6-year-old at night. I think those are stay-dry also, but I might be wrong.
Rebecca, married to J (12/07), DD1 Anna (11/09) and DD2 Ada born at home 7/12 New Guy coming 3/14