I have a longarm, and will not use sheets. I did for only one quilt, and that was because it was a family member, whom I did not want to offend. I do not recommend ever using sheets. They are usually too poor quality, and if you do get better quality, then you have to pay more, and you might as well use a good quality fabric. I also had to take the hem out of this sheet, and wash it prior to putting it in the rack.