I've never tried any kind of organic cotton or any kind eco-friendly material for my bed before, so I wasn't sure what to expect with these pillowcases. I wanted something cooler and better for my allergies, the microfiber ones I tend to use start off cool then tend to make my face and head hot. These feel completely different and I don't feel that my head and face get as hot. The fabric is a nice weight and isn't slippery. The king size allows me to use it one my larger pillows or tuck it in on my standard size ones. I like the fact that they don't use the harsh chemicals or dyes, especially since my skin is sensitive and I have allergies. I'm trying to use more environmentally safe products in my home, so I appreciate that they are eco-friendly. The only drawback is they wrinkle easy, but it's not a deal breaker for me.