I love love these pillows cases. They are cold to touch & stay cold all night. The warm side is soft & definitely warm so I haven't used that side. I have firm & thick memory foam queen size pillows & it fits great, just be careful when putting on because it will stretch too far easily. I have grey and white in these. I wish they'd add more colors like black. It is a true pure white, but the white one is see through but that doesn't bother me. Washes well on cold. I usually wash whites on hot but care instructions say cold so I'm too scared to try hot. I usually will do the white ones in a small load by itself since I do my other whites hot. I add oxy clean powder to keep it white & stain free. No need for fabric softener as they are soft on their own & wrinkle free. I dry on low heat & keep watch on them to pull them out the second I know they're dry to avoid shrinking.
Overall great pillow cases, keeps my head & neck cool all night. I am only using these pillow cases now & hope they add more colors!