Porch & Den Carolina Periwinkle Sheet Set (Twin XL). The Carolina Sheet Set collection from Porch Den is made from 100% cotton with a simple seam. The sheets are made in India and are 300 thread count sateen. Each set includes 1 fitted sheet, 1 flat sheet, and 2 pillowcases except for the twin set and twin XL set that includes 1 fitted sheet, 1 flat sheet, and 1 pillowcase. Available in multiple sizes and colors. Machine wash and tumble dry. The digital images we display have the most accurate color possible. However, due to differences in computer monitors, we cannot be responsible for variations in color between the actual product and your screen. For further information please see our Sheets Buying Guide. .