How Do I Make My Mattress Harder?

Purchasing a new firm mattress can be an expensive venture. A high quality queen mattress set can cost anywhere from £195 to £650, and more. Over time, this once firm mattress can become soft and pliable, which can make for an uncomfortable night's sleep. Sleeping on a degraded, soft mattress can lead to back and neck issues. There are ways to make a newly mushy mattress firm once again, which can potentially save you hundreds on an unnecessary replacement.

Place a bed board or a piece of plywood between the mattress and the box spring. This will help add support to the mattress without feeling the effects of the rigid materials. Wooden or plastic bed boards can be purchased at many mattress stores.

Flip the mattress. Many times a mattress will wear unevenly and will be much firmer on one side than the other. Flipping a mattress once a month will also ensure the mattress wears evenly, which will make it last several years longer.

Remove the mattress from the bed, drag it outside or into the basement and hit it repeatedly with a blunt object, such as a baseball mat. This will help realign any springs that have been warped or damaged and it will help disperse any filling inside the mattress. This method will also help remove dust mites or allergens from the mattress, which will help allergy sufferers.

Replace the box spring under the mattress. Many times the mattress itself is firm and the box spring is causing the sagging issue.


Measure the dimensions of the bed and have a piece of plywood cut to size.

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About the Author

Residing in Chippewa Falls, Wis., Jaimie Zinski has been writing since 2009. Specializing in pop culture, film and television, her work appears on Star Reviews and various other websites. Zinski is pursuing a Bachelor of Arts in history at the University of Wisconsin.