44-45" wide 100% cotton lawn fabric. From Heather Rossâ€™ â€œSleeping Porch" collection for Windham Fabrics. This vibrant collection is printed entirely on cotton lawn. The colors in this collection are sure to stand out, allowing you to create projects that have a unique aesthetic. Heatherâ€™s signature style of whimsical illustrations will appeal to all quilters. While her collections are often designed with kids in mind, or at least grown-ups who still have a lot of kid left in them, this line was designed with the quilter in mind.