Walmart discounts a selection of HoMedics 12" Memory Foam Mattresses, with prices as listed below. That's at least $130 off list and beats our November mention as the best price we've seen. It features a 3" firm foam balance, 3" of BreZZZ pocketed memory foam, 4.5" extra stabilizing foundation foam, and a zippered cover. The sizes, each available for pickup:

• Twin for $169 ($130 off)
• Full for $199 ($130 off)
• Queen for $229 ($170 off)
• King for $279 ($220 off)