In the end, we picked Costco's Total Blackout Velvet Window Curtain 2-pack as the better choice. Available in five unique colors, the curtains retail for about $44, and have large grommets that ...

For the Mainstays (Walmart) Blackout Curtains, the lightest color tested was ivory, and the darkest color tested was navy. These curtains are sold as pairs, and are made from polyester.

Beyond the fact that they look "beautiful," reviewers are loving the functionality of these curtains. One shopper wrote that they are "by far the best [blackout] curtains I have ever had." ...

These premium, well-made window shades have ultra-quiet ... out a voice command to a smart speaker). These curtains come in four different blackout styles, each with at least five color finishes.