I was so dissapointed after washing these sheets and putting them on the bed. I had my immediate doubts when I could hold the sheet up and basically see through it. So the concept of 1800 thread count was beyond belief. The fit was so poor that I believed I had been sent the wrong size but they were the size I had ordered. Unfortunately, they have designed the return policy so that if the package has been opened then you automatically can't make a return. How would you know until they had been opened and washed prior to putting them on the bed whether or not they fit? Not a company I will do business with again and I will most assuredly let anyone who will listen know about their poor business practices.