I ordered these 300 thread count sheets and they are very heavy. I also ordered the 1000 thread count but returned those, as they were as stiff as canvas and will not breath. They would make the bed too hot at night. The fitted sheet has a very well made elastic band around the edge that keeps it in place in my cal-king bed, which has an adjustable frame which allows the head and foot of the bed move up and down. Many other sheets do not stay in place. These are perfect. These sheets are thick, and require ironing, in order to reflect their true sheen and beauty. If you don't like to iron, you can get away with it, but they feel much better if you take the trouble. The best way to do this is to put the fitted sheet onto the mattress and simply iron the sheet surface while it is on the bed. Eh Voila! Sleep hotel feeling sheets. I iron the pillow cases and the top sheet as well, that way , the cuff always stays crisp. and yes....I do work full time. It is a luxury I give to myself and my husband. You will love these sheets. I'm planning to purchase another set.