To prevent light from shining into your house at night, you can take several measures:
Window coverings: Install window blinds, curtains, or shades that are designed to block light. Choose materials that have a dark color and are thick or have blackout properties to minimize light transmission.
Window films: Apply window films that are specifically designed to reduce the amount of light entering through the windows. These films can be adhesive or static-cling and are available in various levels of opacity.
Light-blocking liners: Use light-blocking liners or inserts for your curtains or blinds. These liners are typically made of thick, light-blocking materials and can be added to your existing window coverings to enhance their light-blocking capabilities.
Weatherstripping: Ensure that your windows are properly sealed with weatherstripping. This can help minimize the gaps through which light might enter your home.
Exterior shading: Consider installing exterior shading devices such as awnings, shutters, or exterior blinds. These can help block sunlight from reaching the windows and prevent light from shining into your house.
Light-blocking window treatments: Explore specialized window treatments designed to block light, such as cellular shades or roller shades with light-blocking properties. These options are specifically designed to reduce light transmission.
Light-blocking panels or boards: For extra light-blocking, you can create or purchase light-blocking panels or boards that fit over your windows. These can be made of materials like foam core, blackout fabric, or wood and can be easily installed or removed as needed.
It's worth noting that some light may still enter your home through small gaps or around the edges of window coverings. If complete darkness is essential, you may need to combine multiple methods or make adjustments to achieve the desired level of light blocking.