Fabric makers 37.5 have been licensing their product to makers of activewear for years, and their first namesake line of bedding claims to help you sleep better. While most fabric is passive, "37.5 turns excess heat and moisture into a vapor. The fabric dries quickly, helping to regulate your body’s temperature. If you’re shivering, it does the opposite, holding in heat to bring you back to a normal body temperature."
• Will A Set Of Sheets Make You Sleep Better? | Co.Design