LOVE these pillows! Ive owned several types from when I used to sell mattresses. These dont have cooling gel, but I honestly think theyre better because they dont get hot at all vs being really cold for a few minutes. One pillow has more than enough filling to fill a 13 gallon trash bag and then some. I followed the companys recommendation to throw both pillows in the dryer for 15 minutes with a dryer sheet - they became huge lol these were the best solution for our household since Im a side sleeper and my bf is a back and side sleeper.