Making bamboo boosters

I have no idea if they'll work or not but I bought a pack of 4 bamboo cloths from the Kleeneze lady to use to boost nappies with. The cloths are very thin but a good size (prob a bit bigger than the WNNN insert folded out) so would I be best leaving them like this and just folding them up when I use them or should I fold them and then sew the edges so they are several layers thick rectangle?

How many times do I need to wash them before I can use them?

Any advice would be fab as this is my first diy attempt at anything nappy related

I would probably just leave them, they will take a lot less time to dry like this and you can fold them to fit different nappies as your little one grows

I would probably just leave them, they will take a lot less time to dry like this and you can fold them to fit different nappies as your little one grows

WSS the WNs ones are only 2 layers anyway, and you could just put 2 in, or fold them together if you prefer!