Well they're thicker & stronger than most sheets these days but they're just not smooth enough. A little scratchy. Sleeps a bit warm. Not terrible, I'm keeping them for back up supply, as it is increasingly difficult to find good old fashioned cool crisp yet smooth sheets nowadays. And these are the best of all the ones I've gotten in the past 5 yrs. 
Even sheets that are "silky" are no good. Silky means "shiny & scratchy with lots of snags" to me. 
Old sheets seemed invincible, they were smooth, woven so tight there could be no snagging, & they were cool. 
My skin requires that good old kind but I can't find them anymore, at an affordable price.