The sample I made came out of the wash and was quite revealing. To my surprise, the cheap sheet washed up very soft and didn't really shrink too much at all. Maybe it's the "micro plush" thing. What surprised me was the $10 a yard cotton doesn't look as nice as I thought it would. Oh well, IF I can now get my Pfaff to behave and do the free motion, I think I'll use the sheet. Thanks to everyone for their great ideas. Love this Board!
Oh, I found the sheet set in my local grocery store. I was in line and really just grabbed it.