Such a complicated question with an absolute answer that is very settled and very expensive. The best luxury Egyptian cotton sheets could cost well over $3,000.00 just for the fitted sheet, the top sheet and two pillow cases. Get a duvet cover or two and the 3 seasonal duvets and you could spend in excess of $8,000.00. This would be sheets made from the world famous Giza 45 line.
The problem is not that it is that settled and carved in stone, but what about the ones who either refuse to pay so much for sheets or just can't afford sheets that cost more than a months rent or mortgage payment. So what are the options for the middle class?
The good news is once you drop Giza 45, most of it drops dramatically in price, but not necessarily true that it will also drop in quality.
Egyptian cotton is an ELS cotton, which stands for extra long staple. This means the cotton fibers are at least 30% longer. Longer fibers means stronger, more robust threads and then fabrics.
You can still get ELS Egyptian cotton, it will just be as different strain of Giza, but hardly, if any difference in quality. These sheets sell anywhere from $250.00 to $600.00 for a nice set with a fitted sheet, top sheet and two pillowcases.
This is a reasonable price for such quality from the country of Egypt. This is the route most take because quality counts with Egyptian cotton sheets more than social status and bragging about sheets that cost over $3.000.00.