A heated electric blanket is a cozy and energy-efficient bedding accessory designed with built-in heating elements that generate warmth when connected to a power source. It typically features soft fabrics like fleece or polyester combined with adjustable temperature controls, allowing users to customize their comfort level for relaxing on the sofa or sleeping in cold weather. Modern heated blankets often include multiple heat settings, automatic shut-off timers, and overheat protection systems for safe and convenient use. They can be used either to pre-warm the bed or provide continuous warmth, helping reduce the need for room heating while ensuring a comfortable and restful experience.