Shop Charter Club Sleep Luxe Solid Cotton Flannel 4 Pc. Sheet Set, Full, Created for Macy's online at Macys.com. Cozy up in the Sleep Luxe flannel sheets from Charter Club. Crafted in Portugal with 100% Cotton, this heavy weight flannel will keep you warm all winter long. This sheet set resists pilling wash after wash for longevity and effortless comfort. This palette of soothing neutrals to can easily match back to any bedroom décor.