After years of dealing with sheets that were either too big or too small, I finally decided to spend the money on the sheets made for my mattress. Very happy that I did. At first I thought they were way too big- but they do not move or bunch up at all. Some reviewers said they are scratchy or rough- and they were for the first few days. However, the scratchiness has lessened already and continues to do so the more we sleep on them. Very happy with the sheets.