Very nice sheets. We had 1800 thread count sheets on our old adjustable bed before we got the split top adjustable bed. We paid over $200.00 each for sheet sets that were comfortable and fit well but they did not perform the way they were advertised to do. I still sweat under them so they did not have the cooling effect they were supposed to have. So with that said I was thrilled to find the split top 1800 thread count sheets to fit our bed again at a VERY reasonable price. The only negative thing I can say about these sheets is that they don't conform tightly to the bed as I would like. I like a smooth, tight fit but elastic sheet snuggers can take care of that. I ordered 2 sets to try them out, and WILL be ordering more in the future. They came quickly after I ordered them. Thank you. A VERY Pleased Customer.