I purchased the king/cal king for my son’s PBK “ Full size” duvet cover. I looked at the measurements on line and compared them with PBK cover measurements. I also paid attention to the other viewers saying this ran small. The weight is fantastic for Georgia weather. It fits perfectly, BUT this would be too small for an actual king sized bed. It’s perfect for a full/ queen sized bed if your looking for the duvet to go over the sides of the bed. For what I was looking for this is an amazing purchase! Nice and light and fluffy.