Hi, After using fleece for a couple of years I have now decided to try something new after numerous breakdowns with my washing machine, the hay stuck to the fleece and was causing blockages (I do shake the fleece first but its impossible to get it all off). Anyway back to my question I have started using a towel, then newspapers then some carefresh so I dont get hay everywhere. Only problem both my boys like to nibble it, would this do them any harm or is it ok. ?/