The Queen sizes is $139, compared to at least $185 at other sites.
Brad's Deals Editor Marisa,
The 8" Slumber 1 Mattress-in-a-Box drops as low as $89 with free two-day shipping at Walmart.com. The Twin size drops from$129 to $89, Full size drops from $169 to $119, Queen size drops from $189 to $139, and King size drops from $199 to $165. This matches the lowest price we've ever seen on the Twin and Queen sizes, and we've never seen the King size drop this low. It's one of their best-selling mattress every year with 4.5 out of 5 stars based on over 6,400 reviews. Sales tax is charged in most states.