These sheets are hard core. I love that they are very thick. You can tell they will last practically a life time, which is great considering the price! However, my one complaint is the pillow cases. For the cost, I would have expected the pillow cases to have the "pocket" fold so that the pillows can't slip out. I have a pair of less expensive sheets and they have that added fold so my husband who flips and flops doesn't wake up with a pillow half out of the case. On the bright side, the pillow cases are much longer than a regular king cover.