Because sleep is good. * 300 thread count. * 100% Egyptian cotton twill. * Fits mattresses up to 18" high. * Smooth, silky long-staple cotton. * Extra sets of pillowcases sold separately. * Pleated hem detailing on flat sheet and pillowcase. * All sets include one flat sheet and one extra-deep fitted sheet. Twin set includes one standard pillowcase; full and queen sets include two standard pillowcases; king set includes two king pillowcases. * Machine washable to make life easier. * Twin flat sheet: 68" x 96", fitted sheet 39" x 75", pillowcase 20" x 32". Full flat sheet 84" x 96", fitted 54" x 75", pillowcase 20" x 32". Queen flat sheet: 94" x 104" fitted sheet 60" x 80", pillowcases 20" x 34" each. King flat sheet: 110"" x 104"", fitted sheet 78" x 80", pillowcases 20" x 40" each.