That is because the fibers

The best way to care for 100% cotton Egyptian sheets is to keep the dryer set on a low heat setting and remove the sheets while they are still a little damp. Following these simple instructions will make your sheets last longer. This pilling is caused from repeatedly washing and drying your sheets. Have you ever noticed that, over time, your sheets get really worn in the middle?
That is because the fibers in cotton tend to be shorter, so Expanded PTFE Joint Sealant repeated washings will break down the fibers, and your sheets will start wearing out. Anything lower that 180 thread count and you will be buying new sheets sooner than later. The fibers in this cotton are stronger, longer and more flexible than your average run of the mill cotton. Be sure the label says 100% Egyptian cotton.
This is because there is not as much Egyptian cotton grown or available like regular cotton. The higher the thread count, the better the sheets and the more it will cost you. If you want your sheets to last a good five to ten years, then you need to purchase Egyptian cotton sheets. Sheets with a thread count over 220 are considered a more luxurious bedding sheet. Another way for your sheets to last longer is being sure to buy 180 thread count or higher Egyptian cotton sheets. You may end up with small balls of cotton all over your sheets, what is referred to as pilling.You know the old saying “you get what you pay for”. Well that is especially true when purchasing 100% cotton sheets. . Regular cotton fibers are one inch long whereas Egyptian cotton fibers are 1 3/8” in length.