AKEMI Outlast Memory Pillow Featuring Outlast® technology that was initially designed to protect astronauts from extreme temperature fluctuations in space. Outlast® technology proactively manages heat by absorbing heat when it gets warm and releases it as it gets cool. Effectively manages moisture by reducing sweat production. - Contoured shape offers dual height design that conforms to the natural alignment of the spine. - Active Thermal Regulation - Moisture Control - Improves Sleeping Posture - Contour Shape Material: Top Layer - Silicone with PCM-Capsules, 100% PES Bottom Layer - 100% Combed Cotton Filling: Visco Elastic Foam Product Size 60cm x 36cm + 12/9cm