Our BerryPlushes used to go overnight for awhile. I love them.

I thought my WildChild was side snapping...maybe I'm insane.

What do you mean they work best for you? Do you mean they don't leak and front closure ones do for sleeps? Because I found that we were leaking at nights with front closure (tummy sleeper) - but what I did was just use any fitted with a side closure cover like Motherease Airflow. Just a thought, in case that's your issue.