These are the instructions from the W&N site:
https://warmcompany.com/products/war...bs_productcare
I just open it up & scrunch it into a loose ball, put it in the laundry tub, get it wet, then press down on the batt while it's in the tub to get rid of as much water as I can. Then roll it in a towel, again to remove as much moisture that way. Then I put it the dryer. When you remove the wet batt from the tub, lift it from the bottom, don't grab a fold from the top. While drying, check the lint trap often and rearrange the bulk. Finally, I try and take it out when it is almost dry, and lay it on a bed, smoothing any wrinkles. In any case remove promptly from the dry and let it cool flat.