Twin size 66 - 96 , twin XL 66 - 102....Wal-Mart offers both sizes, come check it out over bed n bath dept.
66 x 96 inches
A standard twin flat sheet (typically 66 x 96 inches) or full flat sheet (typically 81 x 96 inches) will fit the coordinating twin or extra long twin bed. Wal-Mart carries both sizes in a variety of colors.
According to Egyptian Cotton's website, it's 66 by 96 inches.
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