I need help finding an overnight diaper for my 8 month old that will actually work. He sleeps 10-11 hours at night (usually short naps during the day) so you can imagine how full his diaper is when I get him up. Most of the time, the urine seeps out onto him, his clothes, and bedding. I'm a clean freak, so it irritates me! Any feedback on brands I should try? Right now, we are using Up&Up 12 hour.