From 250 to 1500 thread count, these Egyptian cotton are grown mainly in the Nile Valley where it is world-renowned for its supreme softness. Egyptian cottons are used to create bedding of all types from sheets to pillowcases to comforters. The long staple or long fiber of Egyptian-grown cotton means that there is more continuous fiber to use when creating threads or yarns. This yarn is smaller in diameter yet stronger than other cottons. Smaller yarn means that more threads per square inch can be use to create stronger fabric which is light in weight yet breathes well.