We think these sheets are pretty great. With comfort in mind, we developed a signature brushed microfiber fabric that's amazingly soft, breathes well and resists wrinkles.Read more about them here.   Fit:We patterned these with fit in mind and designed each set with a deep fit. Additionally, we used a high quality elastic on the fitted sheet and sturdy stitching throughout to improve the life of each set. Our pillowcases feature an envelope closure to fully enclose your pillow. Each Set Includes: 1x Fitted Sheet (2 Twin XL Fitted Sheets with Split King)1x Flat Sheet2x Pillowcases* (Standard with Twin, Full & Queen - King with King & Cal King)Extra Pillowcases Available Here*Twin sets include 1 PillowcaseComposition: 100% Brushed Microfiber. Size Chart:  Flat SheetFitted SheetPillowcasesTwin:66" x 96"39" x 75"20" x 30"Full:81" x 96"54" x 75"20" x 30"Queen:90" x 102"60" x 80"20" x 30"King:105" x 102" 78" x 80"20" x 40"Cal King:108" x 102"72" x 84"20" x 40" Depth: The pocket of the fitted sheet physically measures 14”, however, the stretch in the fabric is designed to comfortably accommodate a mattress up to 17”.