Keep Draft Out Winter window curtain is designed to keep heat in your room and make a noticeable difference in temperature. It is windproof, waterproof, reduces sound, blackout, and provides privacy. The curtain blocks cold air from entering the room in winter and also helps keep warm air out in summer. Heavy Duty Material Quilted thermal insulated fabric is thick and heavy. It uses a high-density waterproof Oxford cloth. The liner is double-layered and thickened with new silk, fluffy and soft, providing strong resistance to the cold. It helps warm the side of the house this winter. Measure your Window Actual curtain size: 38" W x 62" H. Please measure the width and height of your window before purchase; it fits up to 3' x 5' windows. Unique Roll-up Design Thermal curtain features 2 sticky strips on top so you can roll up the curtain to see the outside view. When rolled down and the attachments connect, it forms a tight seal around the window to reduce heat loss. Use scenarios - Living room or family room in winter: reduces drafts and helps conserve heating energy while maintaining privacy and blackout capabilities. - Bedroom: provides blackout for better sleep, plus privacy and sound reduction. - Home office or study: minimizes outside noise and glare, helping you maintain focus while keeping the room temperature stable.