This double-sided pillow features gel-infused blue memory foam filling for temperature regulation throughout the night. One side uses cooling fiber fabric that stays cool in warm conditions, while the other side features soft bamboo fiber for year-round comfort. The adjustable design includes a hidden zipper that allows you to customize the pillow's height and density by adding or removing foam fill to suit your sleeping position and personal preference. The breathable construction helps reduce moisture and heat buildup while resisting common allergens. Machine washable cover makes care simple and convenient.