Finding the best blackout curtains that work well with window air conditioners can greatly improve your home’s comfort and energy efficiency. Blackout curtains block sunlight and reduce heat gain, while also insulating your windows to complement the cooling effect of a window air conditioner. Below is a summary table featuring top blackout curtain options designed to fit various window sizes and provide effective light blocking, thermal insulation, and noise reduction.
| Product | Brand | Size | Key Features |
|---|---|---|---|
| FADOTY 100% Blackout Window Cover | FADOTY | 40″ x 57″ | 100% blackout, no drill installation, customizable size |
| DWCN Thermal Insulated Blackout Curtains | DWCN | 42″ x 63″ (2 panels) | Thermal insulation, noise reduction, triple weave design |
| NICETOWN 100% Blackout Window Curtain Panels | NICETOWN | 52″ x 84″ (2 panels) | Full light blocking, noise reduction, black liner |
| Amazon Basics Portable Blackout Curtain Shade | Amazon Basics | 50″ x 78″ | Energy saving, noise reduction, adjustable Velcro tabs |
| NICETOWN Door Screen Cover for Air Conditioner Room | NICETOWN | 5ft x 7ft | Insulated polyester, privacy, draft blocking |
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FADOTY 100% Blackout Window Cover

The FADOTY 100% Blackout Window Cover provides complete light and UV blocking with its silver-coated 420D Oxford fabric. This curtain is perfect for creating a dark, comfortable sleeping or living space with superior heat reduction. Installation is quick and simple, requiring no drilling or permanent fixtures, making it ideal for renters or temporary setups. Users can customize the size by cutting the fabric to the desired shape, ensuring a snug fit around window air conditioners or irregular window shapes. Double-sided patches secure the shade and maintain 100% blackout, enhancing privacy and energy efficiency.
DWCN Thermal Insulated Blackout Curtains

The DWCN Blackout Curtains feature a triple-weave polyester fabric that blocks 90%-99% of light and UV rays, offering high privacy. These curtains have thermal insulation properties, reducing heat transfer in summer and cold drafts in winter, which complements the cooling power of window air conditioners. Additionally, they absorb some noise, making them suitable for bedrooms and busy street-facing rooms. The product includes two panels measuring 42 by 63 inches each, which fit most standard-sized windows.
NICETOWN 100% Blackout Window Curtain Panels

The NICETOWN Blackout Curtain Panels combine style and functionality. Their heavy-duty fabric with a sewn black liner blocks 100% of sunlight and UV rays. These curtains reduce ambient noise by approximately 30%, helping to create a quiet indoor environment even with a window air conditioner running. Each pack includes two panels, each 52 inches wide and 84 inches long, suitable for larger windows. The silver grommet design allows for easy hanging and smooth sliding.
Amazon Basics Portable Blackout Curtain Shade

The Amazon Basics Portable Blackout Curtain Shade offers an energy-saving and noise-reducing solution that is portable and easy to adjust. It measures 50 by 78 inches and attaches with suction cups, making it handy for temporary use or window air conditioner compatibility without permanent installation. The Velcro tabs allow customization for fitting various window sizes, helping to minimize heat and light intrusion around air conditioning units.
NICETOWN Door Screen Cover for Air Conditioner Room

The NICETOWN Door Screen Cover is an insulated faux accordion curtain designed for doors and doorways where window air conditioners are in use. Made from thick triple-weave polyester, it blocks drafts and helps maintain room temperature. The curtain adds privacy and sound absorption while allowing flexibility compared to permanent doors. Measuring 5 feet wide by 7 feet long, it is well-suited for larger openings where controlling airflow is important alongside window air conditioning.
Buying Guide for Blackout Curtains Suitable for Window Air Conditioners
Light Blocking And Privacy
100% blackout curtains are essential for completely blocking sunlight and UV rays, which helps keep rooms dark and reduces glare. Curtains with sewn-in black liners or special coatings provide maximum light blockage and protect furnishings from sun damage.
Thermal Insulation And Energy Efficiency
Look for curtains made with triple-weave or thermal insulation material to reduce heat transfer. These fabrics help keep your room cooler by minimizing outdoor heat during summer and preventing indoor cool air from escaping, which supports your window air conditioner’s efficiency and can lead to energy savings.
Fit And Installation Options
For compatibility with window air conditioners, consider curtains that are customizable in size or temporarily installed (e.g., suction cups, double-sided tape, or magnetic strips). Temporary blackout window covers and portable curtains offer flexible installation without drilling or permanent fixtures, ideal for renters or seasonal AC use.
Noise Reduction
Some blackout curtains also offer significant noise absorption, which is beneficial if your AC unit produces operational noise or if your room is near busy streets. Heavy, dense fabrics usually deliver better sound dampening.
Material Quality And Durability
Choose fabrics that are durable, wrinkle-resistant, and easy to clean, such as polyester blends. Water-resistant coatings are a bonus for humid or bathroom window applications.
Aesthetic And Functionality
Consider curtain styles such as grommet tops, rod pockets, or accordion-style drapes depending on your window and door configuration for smooth opening and closing, plus matching your room décor.