I bought 3 sets of sheets 6 months ago and alternate them evenly. Two sets were from a national retailer and the other set was these Egypyian Cotton 600 sheets which were the highest thread count and the best bargain. On average they have been washed 8 times and slept on for a total of 2 months. The bottom sheets have pilled and are absolutely uncomfortable. The pillow cases are beginning to pill as well. In addition, these are the most difficult sheets to iron as hard wrinkles set-in, even if pulled directly from the dryer. The pillow-cases are difficult to iron and impossible to fold properly since they were sewn "out of square" -- even though there are only 2 seams!!! I noticed the label states that these sheets were "made in Egypt" which verifies the claim to be Egyptian sheets. A website about Egyptian Cotton states "The more you wash the fibers the more our product will relax and the SOFTER they will become." I'm not sure that pilling is part of the softening process. These sheets are now out of the cycle with the other 2 sets which have not shown the same wear charcteristics. The Egyptian Cotton sheets will be reserved for guests who stay too long.