Cobblestones White Matelasse Coverlets by Sferra. Crafted in Portugal from pure, long-staple cotton, the Cobblestones collection was inspired the Greek city of Mystras with its picturesque cobblestone streets. An all-over jacquard mosaic pattern flows like a rhythmic pattern, creating a serene yet dynamic canvas that transforms the bed into a work of art. 100% Cotton, Pre-Washed. Plain Hem Finishing. Shams available in King, Standard, Euro and Boudoir size. Blanket Covers available in King, Queen and Twin Bedding Sizes. From the Sferra x Scalamandr Collaboration.