You might find this interesting Rae
We got our weenotions night nappy last night - and compared with what I've been putting on Isabelle I would say it's about 1/2 as much absorbency!
That said I was very impressed - I popped it on her unwashed, I got the cotton outer but hemp inner, and aside from a slim bamboo booster over the hemp (as it was unwashed) it was as is... Well it lasted the night!
Now perhaps she just didn't wee much last night as it wasn't even that soggy - but I was quite impressed...
Perhaps I've been over stuffing Isabelle!
You might want to investigate weedies - we've got a large and its ENORMOUS! I stuff with things like a large bamboo terry, two easy peasy hemp inserts/boosters plus bamboo boosters usually at least... And yes it's HUGE but once covered with custom woolies and she's asleep who's bothered!
That will last the night anytime no matter what she's drunk!!
Also what do you cover the nappy with at night? I find PUL leaks loads but fleece was better and wool better still...