Walmart offers the Slumber 1 8" Mattress-In-a-Box, as listed below. Plus, all sizes receive free shipping. This Innerspring mattress features individual spring coils and a 10-year limited warranty. The sizes:
  • Twin for $94 $88 (low by $20)
  • Full for $129 $119 (low by $30)
  • Queen for $139 $134 (low by $12)
  • King for $174 $164 (low by $2; most charge $220+)