Walmart continues to offer the Everest Mummy 0 to 5-Degree Sleeping Bag 2-Pack, model no. 5MM8352, for $40 plus $3.94 for shipping. (Free Site-to-Store is also available, or spend more than $45 for free shipping.) That's tied with our mention from three weeks ago as the lowest total price we could find by $13. (It's also among the least expensive adult sleeping bags we've seen.) Sales tax is added where applicable. Features include double-layer construction and a compression stuff sack.