I tend to sleep hot, and I find these to be perfect, with that sought-after combination of staying cool enough when it's warm, and warm enough when it's cool. I slip right in at night and almost immediately feel "just right" -- sorta like Goldilocks. They can wrinkle a bit but I don't care.According to some reviews - the King size is from China and is microfiber, while the Twin is cotton from India. Well, I ordered the Full, so who knows? They may not feel like the percale I'm used to, but are not microfiber, either.They have a bit of texture, which I actually enjoy even tho' I have sensitive skin. Some reviewers, however, find these "scratchy". (Well, lemme tell ya: I own a set of hand-made, 100% French flax linen sheets through Etsy. Which - btw - is expensive. Have been following all the proper laundering tips to soften them. But those suckers are still so dang rough, I can barely stand 'em. I fell for the ton of reviews rhapsodizing on the luxury feel of real linen. AFTER you soften them. Of course. Meh. At least my husband likes 'em.)But I digress. My point is - - I feel confident in categorically stating ya don't know scratchy 'til you've slept on linen. In comparison, these sheets are pure luxury!I took off one star for sizing. Negative reviews about this have proven accurate. While the standard pillow cases are sized correctly, top and bottom sheets are too small. I have a 13" full-size mattress with a 1" cotton topper. The bottom sheet after laundering, needs to be slept on so it will stretch enough to not pull out from one corner each time it's freshly made. The top sheet falls to the bottom of the mattress on each side and is too small to tuck. There's "just" enough spare material to tuck at bottom, unless you don't mind having your shoulders feeling kinda uncovered.. I make it work.Overall, these are some of my favorite sheets and I still recommend them since they are otherwise comfy.