Egyptian cotton is world renowned for being the softest cotton and the most durable. The 650 Thread Count single-ply/mercerized solid sheets set are woven with long-staple cotton fibers for superior quality. 100% Certified Egyptian cotton sateen. Cultivated mainly in the Nile River Valley in Egypt, this grade of cotton boasts the longest and strongest fibers. One major advantage of mercerized Egyptian cotton (also known as pearl cotton) is that you can wash it many times without fade. What makes cotton mercerized? To begin with, the linen is made with superior grade cotton, namely Egyptian cotton. Second it is boiled at extremely high temperatures, and third – it is soaked in a solution where it sits for literally for days. Fourth, it is put into a neutralizing solution, and lastly – it is baked! The result increases– softness, beauty, luster, strength, resistance to mildew thus creating a fabric absent of any impurities! Mercerized Egyptian cotton remains colorfast and has incredible strength creating one of the finest quality linens available. Fitted sheet comes with 15 inch pockets accommodating up to an 18 inch deep mattress with a fully round elastic band for a perfect fit. Extra pair of Standard and King Pillowcases can also be purchased separately. 11 Colors Available: Burgundy, Black, Gold, Ivory, Light Blue, Linen, Medium Blue, Moss, Sage, Taupe and White Product Measurements: Twin Sheet Set Includes: One Flat Sheet (66"x100"), One Fitted Sheet (38"x75"), One Standard Pillowcase (21"x31") Twin-XLong Sheet Set Includes: One Flat Sheet (66"x100"), One Fitted Sheet (38"x80"), One Standard Pillowcase (21"x31") Full Sheet Set Includes: One Flat Sheet (86"x96"), One Full Sheet (54"x75"), Two Standard Pillowcases (21"x32") Queen Sheets Set Includes: One Flat Sheet (94"x104"), One Fitted Sheet (60"x80"