This is a high quality luxurious sheet set that feels very durable. The fitted sheet has deep pockets that easily fit my thick mattress and the corners stay secure and snug.  The material is soft and thick feeling and durable so they should last a long time without showing a lot of wear.  They wash well and don't wrinkle as bad as some other sheets that I have.  They were only slightly wrinkled when I took them out of the dryer.  Some of my favorite features are that they use eco friendly dyes and are free from harmful chemicals and substances.  If you are looking for a nice set of sheets that are durable and fit the corners of your thick mattress, then this is a good choice for you.