My little girl has leaked out of overnight diapers even when they were double stuffed since she was six months old. We had to resort to using disposable overnight diapers, which I really didn't like. I finally found some prefitted diapers that work well overnight, but feel so wet in the morning--that can't be comfortable for Emilia. Finally I stumbled across Happy Endings and decided to try one out. Last night, the little lady slept very well, woke up to eat at 5:30, then went back to sleep until almost 7, which never happens! When I changed her diaper, it still felt dry on the part against her skin, and the insert barely felt wet.
I love that it's an AIO diaper that doesn't have flaps at the front and back. It makes it so much easier getting the diaper on a squirming toddler. My girl is 16 months, 22 lbs, and this diaper fit her snapped down one size, so there's a lot of room for her to grow and continue wearing the diaper. Plus it's so soft and comfy! I definitely plan on buying more! I only wish I had discovered these nighttime diapers before we had to buy disposables!