Walmart discounts the Spa Sensations 4" Mattress Topper in the sizes listed below. Plus, each size bags free shipping. It features a double layer of memory foam. The sizes:
  • Twin XL for $65 (low by $18)
  • Twin for $70 (low by $22)
  • Full for $90 (low by $25)
  • Queen for $110 (low by $40)
  • Cal. King for $125 (low by $35)
  • King for $140 ($70 off)