Now you have me thinking about sheets :shock: I have not used a sheet for backing simply because as a LA quilter I know the higher thread counts in the sheets mean that my needle has a better chance of cutting a thread rather than sliding between the threads, however...I am making 9 quilts for the soldiers going to Afghanistan with my daughter next week and with the price of fabric, I may look for some of those $2 and $3 sheets to help with the backings - would certainly impact my budget less. I won't use them whole as I love pieced backs that make the quilt reversible. 200 thread count sheets won't be much different from batiks!