Wife puts on the shopping list 540 threads per inch pima cotton sateen sheets.
I look it up where 540 is just the square root of the number of threads per inch (23 threads lengthwise per inch x 23 threads widthwise per inch).
What's a "good" number of threads per square inch anyway?
Then she says it must be American Pima. Looking that up, it seems Pima is an Andes Indian tribe that grew cotton. That cotton is a special cotton that grows in the USA apparently.
What's the difference between PIMA and Egyptian for example for sheets?
Last, she asks for sateen. Is that a mispelling of satin? Nope.
Looking that up, it's a way of "mercerizing" which is some kind of acid base wash that does something miracle like to cotton to make it soak up stains better.
Anyone know more about how to buy sheets than that lookup gave me?