It has become a joke in my family that I have a thing about sheets. Not true of course. I have just found that great sheets are very hard to pick out of the noise. Thread count, that's it! Magic fabric! Blends! Hotel style! And so forth. But the sheets just were not so impressive. After reading a good bit on the subject, I thought of the most memorable sheets that I have ever slept on. They were at an inn on the Phillips Academy in New Hampshire in 1976 or 7. Heavy but cool. I think they even starched them. Had to be 100% cotton percale I think now. Almost too nice to sleep on but I had no chance of staying awake - so comfortable. These Peru Pima are them I think. These are real sheets, heavier than every higher price sheet I know of. I have not starched them yet! I won't, I reckon. They feel cool yet substantial. When my wife gave me these for my birthday (on my recommendation), I turned around and ordered a 2nd set. 415 thread count. I think I will use them a long long time.