Scroll down to find out more about the productsmart buy Keep your heating off and stay warm all winter with $8.99 Walmart buyAS winter approaches, this Walmart buy could help you stay warm while keeping the heating off. 2 Walmart's thermal blackout curtains Credit: Walmart2 Shoppers will be looking to stay warm during winter months Credit: GettyWalmart is selling blackout thermal curtains as part of a flash deal, just in time for colder months. These blackout curtains come as part of a set of two panels per package. According to Walmart's website, the blackout curtains "block 98% to 85% of light and UV, with darker colors up to 98% and medium shades at 85%." Crafted from cotton, the dress is perfect for the warm weather as it is specially designed to keep you cool.