We're going on two weeks of cloth diapering at night and it's going great! We've had some minor leak issues to work out, but it seems like triple stuffing (adding an extra hemp liner) works pretty well. We've only had one overnight poop, which actually wasn't that bad to deal with. The extra laundry is manageable thus far, and I'd like to gradually build our "stash" of diapers to use for nights and weekends. We can also bring him to school in a cloth diaper and they will put him in one to come home - awesome!
One drawback is expense - they're $15-$20 a pop, and to do it full time we'd need a couple dozen diapers, plus extra liners - ouch! We have eight right now, I'd like to get a few more and I think we'd be set for a while. We're using both Bum Genius One Size and Thirsties Duo Diapers - two different kinds of "one size pocket" diapers. Basically the outer cover has an adjustable rise to grow with him, so we theoretically won't have to buy any more diapers until he's potty trained! There's a pocket inside the cover where you stuff 2-3 absorbent liners, made from hemp, cotton, fleece, or microfiber for example. The whole shebang goes on just like a regular diaper and fastens with velcro or snaps.
There's a giveaway going on over at Hormonal Imbalances - a chance to win 5 more Thirsties Duo diapers! How sweet would that be???