I spent a very very very long time looking for a new bed. I have never had one of these types of beds and I was so nervous. But after extensive research I got the Sunkiss cooling gel memory foam. THIS BED IS BY FAR THE BEST BED I HAVE EVER HAD! It is so comfortable I don't even want to get out of it in the morning. When I get home I just want to lay on it. I am so pleased with this purchase! As far as the cooling part I would say yes it works. I was miserable on my last mattress because it retained so much heat. This does not. Anyway if you are debating don't get one I think you will love it!