Walmart offers the GranRest 6" Saturn Memory Foam Mattress in several sizes (listed below) from $87.99 with free shipping. The deals:
  • Twin for $87.99 (pictured, $31 off)
  • Twin XL for $93.90 ($55 off)
  • Full for $119.99 ($49 off)
  • Queen for $140.78 ($53 off)