we were told by our doctor to buy therapeutic pillows for our necks. The polor foam pillows are no good. FIrst of all, I thought the bad smell was terrible, so I had to keep mine on the porch to air out. The foam is too firm, too hard. It's like a brick. I don't feel any cooler sleeping with it. And what's with the bad cover. For the price, the whole thing should be better.