So today I bravely threw 3 of my wool diaper wraps in the washing machine (top loader at laundry mat) and they came out perfect. Then I lanolized and hung to dry. I have been hand washing the covers due to fear that I would shrink my wool wraps. I am so thrilled to know they do machine wash. :) I hand wash my diapers through the week and machine wash every 7-10 days for the past 2 months with great results (as in no ammonia aka stink). I'm a happy Cloth mom. I haven't successfully sold any wraps or covers and only one diaper which is disheartening but perhaps knowing I can machine wash my wraps will help change that.