I read the reviews and thought I’d take a chance and make up my own. So glad a did. Slept on pillow a couple of nights now and really impressed in how comfortable it’s been. I’ve gone from 2/3 hours a night to 6/7 hours in a short time. First time I used it I’d hurt my shoulder earlier in the day but I still slept. In regards to the cooling technology, I’m not sure what others were expecting or I but what I found was I wasn’t waking during the night and having to flip it over for the cool side, it said at a constant temperature, and did have any “warm” spots. Would highly recommend.