We were having leaks almost every night. I was using an eco disposable covered with a fleece cover, sometimes with boosting too, to no avail. 12 hemp + 3 microfibre in a pea pod, no joy either.
I have found success with a pea pod stuffed with a hemp 2 layer trifolded + swaddlebees insert (5 layer) + peapod microfibre insert all covered by 85% wool 15% silk longies.
I know people rave about wool all the time, but until you experience it yourself, I don't think you relly believe it.
All haill wool!