Cooling Adjustafirm Pillow 249 Clinometer Royalty Free Images, Stock Photos & Pictures Shutterstock. For that cool side of the pillow feel all night long along with unparalleled neck and back support look no further than our Cooling Adjustafirm Pillow. Meticulously designed for a deluxe sleep experience, this pillows unique dual zipper system allows you to customize your pillows firmness to your preference, and features a cooling gel infused, memory foam filling that cleverly reduces heat concentration around your head and neck area. By continually absorbing heat and dispersing it throughout the pillow, our cooling gel technology creates a cooler pillow surface to rest on, ensuring all night comfort. (No more pillow flipping required!) Dual zipper system for adjustable firmness Cooling nylon blend cover Memory foam mix filling, infused with cooling gel Spot clean only OEKO TEX certified