B.W.
Is she leaking out, or she just smells of urine when she wakes? If its just that she smells of urine... Im not sure there is much you can do about it. What kind of soap are you washing them in? Sometimes, depending on the soap you use, hte urine will react with it and make it smell terrible! I know that anything like Tide, All, even Purex will make the pee smell just awful. We use Charlies Soap (www.charliesoap.com) and its the best. No scent, washes clean, and gets the diapers so clean. Its cheap too, $12 for abag and it will last for months if you use it for just your diapers. We use ours for all our launry, and it lasts me 2 months on just one bag.
ANYWAY, my point is, if she is leaking out, you may have to try something like a pocket diaper with a couple extra stuffers in it. If its just the smell, its probably the urine reacting with the smell of the diaper left behind from the laundry detergent you are using.