I don't know if this helps, and it isn't strictly a fleece nappy, but have you heard of Stuffies nappies. They are cotton on the outside and fleece on the inside and you can stuff them with whatever you want to and as much as you like. I think they come with a cotton/bamboo insert.
I have found these to be the "perfect nappy".
Obviously you still need a waterproof wrap, and I use ME Rikki wraps.
They are really good for night time as you just stuff them up and they hold a ridiculous amount of wee. My 6 month old heavy wetting boy wore one last night and whilst the nappy was sodden, it didn't leak and his skin was really peach still.
Anyway enough said