Percale sheets tend to be lighter in weight, cooler and more breathable. They tend to have that white-button-down-shirt kind of feel. Because of their cool-crispness and breathability, percale sheets are usually better suited to the warmer months when sleepers are trying to stay fresh and stave off those night sweats.
Sateen sheets are woven to create a silky smooth surface with a luminous sheen and is known for its luster and drape. Sateen is usually a little thicker and more tightly woven. It has a soft, inviting touch, perfect to snuggle into bed with during the cold winter months.
Flannel sheets provide a cozy fuzzy feel that comes from brushing out the fibers after the fabric has been woven. Typically a thicker bedding type, flannel is the perfect choice to make sure you're warm and cozy during those cold winter nights.