Why you need it: provides cooling comfort and moisture management to help you sleep more soundly; designed to relieve heat and stress with selfregulating temperature for a cooler sleeping experience. texture: outer fabric is 1200% pure cotton jacquard water washed pleated yarn, delicate and soft, skin friendly, and not bulky. inner washed cotton has a soft color, good elasticity, and fits snugly, making it very comfortable. How it stays cool: gaps in the yarn form an air layer that stores excess body heat and exchanges it with the outside air, allowing automatic temperature adjustment to keep the skin cool and comfortable in warm conditions. Cool and breathable experience: when used with a fan, it provides an enhanced cooling effect, helping to quickly lower perceived temperature and improve sleep quality. Use scenarios: Hot nights at home: pair with a ceiling fan or room fan for quicker cooling and more comfortable sleep. Humid climates: the breathable fabric helps manage moisture and maintain a dry, comfortable feel. Travel or hotel stays: a lightweight cooling layer that can improve comfort in warm environments. Material and performance highlights: designed for cooling performance with a soft, skinfriendly feel; the combination of 1200% pure cotton jacquard outer fabric and inner washed cotton delivers comfort, elasticity, and a snug fit while remaining lightweight.