Ensuring consistent comfort throughout with BEDGEAR's React fill, BEDGEAR's Cosmo Performance pillow features a single-chamber design. This 0.0 size has been sleep tested as ideal for small to extra small body types and back or stomach sleepers. Crafted with two patented Air-X mesh patches with air vents, one on each side of the pillow, it creates cross-ventilation for maximum breathability. Cosmo incorporates BEDGEAR's patented Ver-Tex instant-cooling cover to reduce sweat and heat buildup. Cosmo's zip-off removable and washable gray cover, boasting a marquee-diamond pattern with rose gold stitching, promotes a clean and healthy sleep environment.