Do cooling pillows actually keep you cool all night?

Across the reviewers we read, the consensus is that most 'cooling' pillows feel noticeably cool to the touch when you first lay down, but how long that lasts depends on the construction. Pillows with breathable shredded fills and ventilated covers tend to hold up better over a full night than solid memory foam slabs, which several r/BuyItForLife and r/Mattress threads describe as warming up once your body heat saturates the foam.