I purchased these sheets to fit a special made California King bed with temperpedic mattress topper. Before laundering, the sheets were loose fitting, but after being washed, the fit was one of the best ever. The fabric is very thick and appears to be quite durable. With every laundering, these sheets feel softer and softer, and this is a comfortable, cotton feel not the slick satteen feel of many sheets sold today. Although the price of these sheets was a tad bit more than I generally like to pay, I ordered another set because of the durability and softness factor. These are probably the best sheets I've purchased in many, many years.