There is absolutely nothing wrong with sheets. Believe your common sense and skip all the hype about unbelievably expensive high end quilting fabrics. I understand that they have their place just like the Westminister dog show has a place for some dog lovers. I love my rescue dog and my recycled fabrics. Recycling is part of the legacy we leave our grandchildren and a great way to make wonderful, unique items. If you get a chance to recycle a sheet, try it.