# How to Add Firmness to a Memory-Foam Mattress
Memory-foam mattresses are made of polyurethane that softens with body heat and molds to the sleeper's body for a comfortable night’s sleep. The warmer the temperature is, the softer the memory-foam mattress. A low-density mattress is also pressure-sensitive and instantly becomes soft when an object presses into its surface. If the memory-foam mattress is too soft, adjust the temperature of the room or cover with a mattress pad to add firmness.
Things You'll Need
- Mattress pad
Instructions
-
-
1
Keep your room at 55 to 60 degrees Fahrenheit. Memory foam becomes firmer at colder temperatures.
-
2
Allow the mattress to adjust to the cooler temperature before using.
-
3
Place a mattress pad on top of the memory-foam mattress. These mattress pads can be found at most home-goods stores and come in a range of firmness levels. Eggshell-crate mattress pads can instantly add firmness to the mattress and are also easily removable if needed.
-
1
- How to Measure Mattress Firmness
- How to Add Firmness Under Chairs
- How to Get a Firm Mattress
- How to Add a Pillowtop
- How to Add Memory Foam to a Mattress
- How to Store a Mattress
- How to Keep Air in an Air Mattress
- How to Reverse a Mattress
- How to Steam a Mattress
- How to Dry a Wet Mattress
- How to Dry a Mattress
- How to Add Firmness to a Soft Mattress
