One side of the pillow is lined with a padded external gel layer. This gel layer reacts several ways to help keep the pillow cool.
Gel molds and contours to the weight of your neck and head.
Gel absorbs excess heat where your head and neck are resting.
Absorbed heat is dispersed across the entirety of the gel layer.
As air naturally moves over the areas where your head is not resting it constantly cools the gel layer. It’s like a mini-AC for your pillow