the pillows feel nice, but would prefer a little softer. Also, the foam is loose inside the pillow case. My old ghost pillow has the foam inside an inner pillow case so I could put the ghost bed pillow case in the washing machine without the foam.
i dont know what material this is made out of but it has what seems to be a 3 stage cooling feature where the cover has a cooling side the pillow has a cooling side and when you mix and match you can get different levels of cool. These are a bit smaller than im used to but i have enjoying many good nights sleep on these and will continue to use them.