I use WNNN and Holdens landing bedbugs. As previous person said, just go for it with the wool but if its new then lanolise it well. It might need to be used and lanolised a few times before it works really well. I used preloved wool first so I knew it would last. My home made ones have taken a few tries to get them working as well.
I also have a winning combo of night nappy, fleece soaker and loose fitting wrap. I found that because my LO doesn't move in her sleep she was getting some pressure wicking so this combo works well for us. Looks a bit strange but that doesn't matter and the fleece cuffs stick out of the wrap and prevent any marks on her legs