Bought these sheets along with a purchase of the 3D matrix bed. Very very happy with these. They’re crisp and cool, but also quite soft. They feel amazing when you get into bed at the end of a long day. They have a thick elastic band to keep them tightly secured on the mattress. I plan on purchasing another set. My only criticism would be the limited color options, but comfort and quality wise I have nothing negative to say. Highly recommend.