When we got a new Calif King mattress last fall, I was delighted to find a set of 300 thread count sheets for under $30. This was the first time for me to use 300 thread count sheets. I was happy to find that this new sheet set had plenty of room to fit the deeper mattress we had bought. Like another reviewer, I found the sheets to be kind of stiff until they had gone though a couple of washings. I am disappointed when it is necessary to occassionally pre-treat a stain on the sheets that the area that has been treated appears warped after washing and drying. I am also diappointed that when these sheets come out of the dryer, they are not as wrinkle free as, for example, 200 thread count sheets. (I dry them on delicate and remove them before they are totally dried.) I also find that any ragged edge, like a toenail or fingernail or earring back, will "grab" at the sheet and that can be uncomfortable. All in all, for the reasonable price of this product, it has been a good purchase.