Yes here also. I use a prewashed king size sheet (250 thread count) for the backing on a queen size quilt.
It feels stiffer...not like the soft muslin backing I usually use and is harder to keep on the bed. The muslin backing seems to cling to the bed better. Also, when I hold that particular quilt up you can see light thru the needle holes...it was machine quilted on a long arm machine. If I plan to tie a quilt instead of quilting it I usually back it with a new sheet. Good results also depends on the quality of the sheet and the mix of fibers it contains.