A comforter is a type of bedding that provides warmth and insulation. It is typically filled with materials like down feathers, synthetic fibers, or cotton, and is designed to be used on top of sheets. Comforters come in various sizes, including twin, full, queen, and king, to fit different bed dimensions. Comforters often feature decorative covers, known as duvet covers, which can be easily removed and washed. They are available in a wide range of colors and patterns, allowing individuals to match their bedroom decor. Many people choose comforters for their softness and ability to keep them cozy during sleep.