No matter how good your blackout or room-darkening curtains are, without proper installation, you’ll still see some light. Here are the small tweaks that make all the difference.

These blackout curtains feature a dual-color ombre design. They're available in an impressive 31 colors. You'll find your usual suspects like white, gray, black, and blue.

BGment Classic Blue Blackout Curtains, $15 (was $30) at Amazon. Get it. Made of triple-woven microfibers, these light-blocking curtains are lightweight and silky-smooth to the touch.

BGment Classic Blue Blackout Curtains, $15 (was $30) at Amazon. Courtesy of Amazon. Made of triple-woven microfibers, these light-blocking curtains are lightweight and silky-smooth to the touch.

TheStreet aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Amazon is selling 'beautiful' $54 blackout curtains for just $27 ...

Amazon is having a sale on the Shineland Pleated Blackout Curtains. The window treatment has been discounted by 50%, so shoppers pay just $27.

In better news, there’s 50% off selected sizes and colours of the Montreal Ultra Blackout Eyelet Curtains which range in price from £20 to £69.30, depending on your requirements.

The Genoa Chenille Blackout Eyelet Curtains is £40 in the smallest length of (W) 117cmx137cm (D), you can look at the cost of other sizes by clicking here. It is available in six different ...

The Isla Ultra Blackout Eyelet Curtains come in widths of 117cm, 168cm, and 228cm and drops of 137cm, 182cm and 228cm and in six shades: Emerald Isla, Orange Umber, Isla Orange Umber, Rose ...

Gingham Blackout Curtain. Nestig. $89. Available in cool shades of mint or blue jay, these 100% cotton curtains with polyester blackout lining are OEKO-TEX certified (aka free of harmful substances).