So, I say the Sealy All Night Cooling Pillow absolutely DOES keep one cool all night long and that is a hill that I am willing to die on. My husband, who is the one using the pillow, says that he is still skeptical. I however have PROOF. You see....my husband usually sweats profusely throughout the night, no matter how low the AC is set or if multiple fans are pointed directly at him. This sweat then soaks through the pillow case, countless pillow protectors, and into the pillow. It stinks and it stains and no amount of washing will penetrate the funk. We seriously go through multiple pillows and dozens of pillow cases and protectors every year.  AND THAT IS MY PROOF! He simply doesn't sweat with this pillow; not one drop. I'm so happy. Everybody is getting one!!!!!