I just purchased another set of their sheets. I will not buy sheets from any other company. Not only are the sheets great but so is their customer service. We have a split top king and found out the hard way that the material used in the split wears out or rips in other brands. Not in the ones from Quahog Bay. They are so well constructed and the sheets feel fabulous. We purchased the 600TC. I highly recommend Quahog Bay Bedding.