I got desperate waiting and ordered some cheap fitted and a wool soaker from Amazon.
After spending all day prepping them on Sunday (6 washes, 2 dries) I gave it a go and she leaked through a bit, but the wool felt dry. So weird! Why is that? Her sleep sack was wet and cold, but her wool was fine and her diaper was drenched but still warm (not horribly uncomfortable if she slept through until 5am, which is sadly good these days, ugh)
3 more washes and 2 dries on Monday, no leaks!!!
I'll review the good stuff when I get it and prep and try.
Wool soaker, $30!
Hemp and cotton fitted, under $20 with two inserts that snap in,
This one I've prepped but haven't tried yet
Bamboo and organic cotton, under $20, fitted with two snap in inserts (looks exactly the sane as the hemp, probably both made in the same factory...)