ragquilter

I use sheets all the time. I buy flat sheets at thrift stores too. The vintage ones have a great feel and are usually a blend and wear well. I would say try one and see how you like sewing and quilting with it and how well you like it finished.

jaspersu

I love piecing the back of a quilt from multiple fabrics, inserting a strip of patchwork between different fabric pieces or using one or two blocks that didn't get used on the top. it is a chance to make a composition/ design that relates to the quilt top.

Silver Needle

When we took our longarm training the trainer recommended not using sheets for backing because of possible high thread counts. So as a longarmer I prefer clients not use sheets as backing. If you are doing your own quilting remember there aren't really any quilt police. I use all cotton on my own quilts as I find polyester too hot. I'm going to try the diagonal backing method to save on fabric in my next quilt if I am not using wide backing.