Several companies make “privacy film,” which is basically removable, cut-to-size plastic film that you can adhere to your windows. While this film alone will not completely block out light, it will reduce the amount of light that comes through your windows. Aluminum helps reflect the sunlight coming in through the windows, so it can reduce your utility bills as well as block light. Use painter’s tape to secure the foil to avoid damaging your windows. If you rent your home, be aware that some property managers will not allow foiled windows. If you’re not sure whether you’re permitted to use foil, ask first. Blackout curtains are usually made from thicker fabrics and have liners that block light. In addition, they can reduce your utility bills because they help insulate your home.  You can also search for “thermal” curtains, which are also heavy and lined and serve the same purpose. If you really like your curtains, you can purchase just a blackout liner and hang it behind your existing curtains using clips or a second rod. IKEA, Home Depot, and many department stores sell blackout liners. If you’re crafty, you can often  sew curtains yourself for much cheaper than purchasing them. Most fabric stores sell “blackout drapery lining” and thermal fabrics that you can use behind any curtain fabric you choose. You can even sew linings into your existing curtains. Roller shades, roman shades, and other fabric window shades often block more light than curtains alone. They are widely available from home supply stores, departments stores, and online. You can also make your own shades from blackout fabric. While these may not be as attractive as purchased shades, they are usually cheaper. Drapes and blinds will help block any light that still comes in through filmed or foiled windows
غطِّ نوافذك بغطاء الخصوصية. ألصق ورق الألومنيوم على نوافذك. اشترِ ستائر معتمة مبطنة. قم بخياطة ستائر التعتيم بنفسك. اشترِ ستائر تظليل النوافذ. أغلق البطانات والستائر على نافذتك.