I'm hot natured so I might be hard to please. These sheets say "microfiber" now, but I could have sworn they said "Micro-flannel" when I bought them. Either way, at least on one side, these sheets are SOFT while still keeping me cool at night. One side of the top and fitted sheets feel fine, but has that slick, polyester feel to it. The opposite side, however, is another story. It a "squeeze-a-microfiber-teddy-bear" kind of soft and it's ridiculously comfortable. Just move any part of your bare skin across it and you'll feel it to.After a year of owning this set of sheets, I bought another just because I got tired of waiting for one set to wash and dry before I could put them back on the bed. Do yourself a favor and buy these. They're a little bit thick, but I live in Mississippi so the AC is always set to 72°F. Even in the summer, they're just right. If I get cold in the winter, I'll just roll a comforter over myself.