I agree with you! I don't ever wash anything until the quilt is completed and then it all kind of melds together...

I have washed all kinds of batting in my front loader washer. I most always pre-wash my fabric. I don't want my quilts to have the puckery look especially table toppers, table runners and placemats. When I dry batting and fabric, I don't let it get completely dry and press the fabric and lay the batting on my bed and smooth it out to dry. I've never had a problem and never have to worry about colors running or I use a color catcher.

Thank all of you for your replies. I cannot trick my washer into anything, the door locks as soon as the water starts. And you cannot open the door of a front loader when there is water in there.
The NO's are 2 to 1 over the YES's so I think I will not worry but I like the idea of laying it out of the bed for a while.

i always prewash if i'm making a childrens quilt

No, I have never prewashed. I have on occasion put it in the dryer with a damp towel to release some of the wrinkles.

No to prewashing Warm and Natural batting. Never have - never will.

I only prewash all my fabrics, nothing else.

Ditto :)

no I don't prewash anything Iv never had any problems with batting or fabric

Never thought of pre-washing the batting!