Thank you for this information! I've always wondered about this. I like kona but don't care for it for applique due to the thickness. When do you all reach for the kona?

I have always used Kona fabric and never been disappointed. Love it!

I like to use Kona for the background of my applique blocks.

I read the article by Kaufman, and I'm wondering how that relates to sheet thread count? Would it be similar to a high count cotton sheet, and good to use for pillowcases or duvet covers?

I love the REAL Kona fabric.

Kona Cotton Solids are 60 x 60 threads, a broadcloth. Moda Bella Solids, also broadcloth, are the same. Standard quilting cottons are closer to 75 threads and batiks are higher than that.

I'm wondering how that translates to purchased sheets which are listed as 180-1000 thread count on the label?

There is plenty of information available on the internet regarding the thread count of sheets and how it is computed. Generally sheet manufacturers count the plies within each thread which is how they get such insanely high numbers. The idea of 1000 actual threads per inch is inconceivable, imo, and the system is not the least bit standardized.