The sheets are great. The fitted sheet is specially designed to stay on the adjustable bed that we purchased. It really works. And the flat sheet has the specially designed "long" end to stay tucked under the foot of the bed. It isn't perfect, but works better than conventional sheets if you have an adjustable bed.
Overall, I am very happy with the purchase. With winter approaching it would be nice to have a set of flannel sheets...hint, hint.