Sateen weave is a type of cotton weave, which is one thread over and three threads under. This is different from the percale cotton weave – the traditional one thread over and one thread under. These additional threads make sateen slightly warmer on the skin, so it's great for cooler sleepers.
Sateen sheets, on the other hand, are crafted using a unique weaving technique that gives them a smooth, shiny finish. Sateen sheets are typically made from cotton and have a luxurious sheen, making them a great choice for those who like a silky feel against their skin.