300 thread count is the perfect weight. 100% cotton - perfect. So smooth, crisp, and cool. Very high quality. They fit well. They are cool like cotton should be. These sheets have an excellent weight to them, are soft to the touch, yet have a bit of crispness. They are efficient sheets. I was pleased with the wide hem and elastic all the way around the fitted sheet, with extra elastic at the corners to help hold the sheets onto the bed. They are made really well and the fitted sheets are a breeze to put on. There was mild wrinkling after washing and drying in the dryer, which is normal with cotton sheets. I smoothed out the hem with my hands, and they looked fine on the bed. I'm super happy with these sheets, and would buy them. I love these sheets! Soft and quality made.