The single-chamber Balance Performance pillow ensures comfort and consistency by providing a flexible yet firmer feel. The pillow keeps you softly supported throughout the night so you can stay gently elevated and totally tension-free. Balance’s temperature neutral Dri-Tec fabric and patented Air-X airflow technology helps you sleep comfortably throughout the night. It features four different fit sizes depending on your sleep position and body type from 0.0 to 3.0 — with the 1.0, 2.0 and 3.0 sizes featuring breathable mesh on all four sides to ensure continuous airflow. The 0.0 size is a single chamber with breathable mesh patches on the pillow’s surface. The pillow supports a back sleeper, side sleeper, stomach sleeper and multi-position sleeper. Sleeping should be no sweat. That's why we developed our Dri-Tec fabric to continuously wick away moisture, stabilizing your temperature so you can get your most solid sleep. And Balance’s removable, washable cover provides easy care to ensure a clean and healthy sleep environment.