Re: What's the deal with wool?
I have one wool cover that I knitted for LO (6 mo). We use it every night. I wash it when I have to (when it gets poopy or starts to smell) but otherwise I just leave it to air out during the day and it's ready to wear that night.
At night we use a bamboo fitted (Bumboo) with a microfleece liner to keep LO feeling dry, and the wool cover over it. No diaper changes at night thanks to the microfleece. In the morning the wool feels damp and the fitted is completely soaked, but we haven't had any leaks. Love it!