i havent had a problem with my Pea Pods, Archie wears them during the day and for his day sleep and he gets about 3 hours out of a nappy, i have had a few little leaks when he sleeps in them or is in the stroller or carseat for an extended period, i have a red one that i can only leave on for 2 hours as it leaks as well, must have been a bad red batch or something.

I have no idea whats up with the bunching in the middle....i have never had that problem, do you use the Pea Pods tri fold hemp or bamboo insert....sorry im not much help.