I have been searching for percale sheets! Percale to me means a smooth, cool feeling that is comfortable as well as durable. I received this set of sheets & tried them out after only 1 washing. I am truly pleased! The bed is so much easier to make when the sheets smoothly glide over each other. And so very comfortable to sleep on, too! I have spent too many dollars for so-called "High Thread-Count" that means nothing to me if they aren't smooth & soft. Thank you O for naming the one thing (Percale!) that I had been looking for!