BREATHABLE STRUCTURE KEEPS YOU COOL: The fabric of SHEEX sheets and pillowcases features a unique, breathable structure that creates superior ventilation and heat release to keep you cool. In addition, these fantastic sheets are moisture wicking, ideal for those who experience night sweats, to keep you dry throughout the night. PRO+IONIC COPPER FABRIC: These LUXURY COPPER Pillowcases feature PRO+IONIC copper fabric that releases ions that may decrease oxidants in the body and promote healthy skin rejuvenation. This lightweight fabric is ultra-soft and feels incredibly smooth against your skin. POWERED BY SLEEP-FIT TECHNOLOGY: Our Sleep-Fit Technology offers unbelievably soft fabrics, enhanced breathability and advanced thermoregulation to keep you from waking up hot, sweaty and uncomfortable. Our products are designed to provide unrivaled comfort for deeper, more restorative sleep.