How to Change a Soft Mattress Into a Firm Mattress

Ultimately, purchasing a firmer mattress is the best remedy for a soft mattress. However, if buying a new mattress is out of the question, rent a bed board (a solid piece of wood or other substance that is placed between the mattress and box springs), purchase a bed board, or have a lumber yard cut a piece of plywood that can be used as a bed board. Any of these options will add more back support to the soft mattress you currently own.

Things You'll Need

• Tape measure
• Mattress measurement

Show More

Instructions

• 1

  Sleep on the floor first to determine if you feel any change from resting on a harder surface.

• 2

  Rent a bed board from a medical supply store if you’re not certain it will give you all the support you need. Have someone help you remove your mattress. Then place the bed board on your bed between the mattress and box springs. If sleeping with the rental board under your mattress during the rental period gives your back the extra support it needs, you might benefit from owning a bed board.

• 3

  Measure your mattress to be certain the bed board fits the bed with no overhang. Consider your lifestyle before making the bed board purchase. If you travel frequently, choose a folding bed board that travels easily.

• 4

  Purchase the bed board on the Internet or ask the medical rental service to recommend a retail store.

• 5

  Go to a lumber yard or building supply center and have a 1-inch thick piece of plywood cut to fit your bed measurements. Sand the board, then wrap it in a blanket or put it in a duvet cover before placing it on your bed to prevent damage to your mattress. You should probably only invest the time and effort into creating your own bed board if travel or moving is not a concern, and you intend to use it for an extended period of time.