HYBRID DESIGN: Brookstone 2 in 1 Comfort Pillow is proven Best of Both Worlds Comfort! A supportive memory foam core with our plush Better than Down fill. COOLING COVER: Cooling pillow case for warmer seasons or hot sleepers can be turned inside out to reveal a plush and cozy micro-plush cover for cooler seasons. SIDE AND BACK SLEEPERS: Supportive hybrid design fills the gap between head, neck and shoulders for maximum pressure relief. PREMIUM QUALITY: Made from top-tier fabrics with a cooling olefin-polyester blend cover that reverses to polyester micromink inside. EASY CARE: Removable wash and dry cover (follow care instructions) Top Fabric: 53% Olefin, 47% Polyester, 350 gsm Inner Fabric: 100% Polyester Micromink, 250 gsm Cover Fill: 0.9D Polyester, 7.5 oz each side Inner Fill: Molded Memory Foam in a Printed Sock