This is what works overnight for 10-13 hours for us, starting closest to the skin out to the cover:
We already owned some Thirsties hemp inserts and I had wanted to try out some GMD workhorse diapers anyway, thinking about building a newborn stash for future babies, so I purchased a couple medium and large GMD workhorse fitteds just for overnights. For a fitted diaper, they're reasonably priced, natural and organic. Calvin can fit in the mediums, but they come kind of low on his backside, so we prefer the large at this point, he is around 23 pounds.
Our Overnight Cloth Diaper Solution video here.
Condensed overnight solution video with demo here.