Hey Jodie

I'm not an expert (at ALL) still learning, but I have all of the nappies you are getting..

This is the way it works in this house (which may or may not be right.. lol)

Hautes: Come with two microfibre inserts that you snap together and stuff into the pocket. This is all I have ever needed for about 3 hours on DS - who is a pretty big wetter too.

Happy heiny: Comes with two microfibre inserts that you place together - and stuff into the pocket. This usually does about 3 hours for DS too.

Green Kids: OK - for day time use (about 3 hours) I put a hemp insert in with a microfibre one on top. If I want it for longer than that (ie, car trip, going shopping, not sure how long I will be) I will place a bamboo booster between the insert as well. For night use - I put a bamboo booster inside a bamboo insert, with microfibre on top. Bamboo is more absorbent than hemp and holds more pee pee. I can get from 8.00pm to 6am without a leak this way.

Baby Kangas: They come with one insert. So what I have been doing - is using their insert, plus a BumG microfibre one, plus a bamboo booster from Baby Beehinds, just placing them on top of each other, and stuffing them in the pocket. This will do him for a nap - say at least 3 hours??? Then we know we don't have to change him immediately once he gets up either. Works great!!!

Bum Genius: Come with two microfibre inserts to shove into the pocket. TBH - this is all that we use - and it does us for about 3 hours or a nap.

I only use microfleece liners if he has nappy rash and I need to use good bum cream.

So not sure if I have helped at all. Green Kids have a good thing about absorbency and different materials on their website if it helps at all???