New Cool Gel mattress, with cool crystal fillings, is our best yet. Researched, developed & handmade in Ireland, its formula works with your body’s natural temperatuture, so that you don’t get too hot or too cold at night. also Inside famous pocket springs this mattress is finished with a box top, Inside Cool Gel responds to your bodys temperature to absorb excess heat when you are too hot or releases stored heat when you are too cold – to keep you at a comfortable temperature to get your maximus nights sleep, Just right.