How to Clean a Memory Foam Mattress | Keep It Fresh

Clean a memory foam mattress by vacuuming the surface, blotting spills immediately, and spot-cleaning with mild detergent before air-drying completely.

A memory foam mattress needs different care than a traditional innerspring bed. Soaking the foam, scrubbing stains, or applying heat can ruin the material and invite mold. The process is straightforward: vacuum debris, blot liquids with towels, spot-clean lightly, and give the foam plenty of time to dry. Below is the step-by-step routine that works for TEMPUR material and most other foam mattresses.

What You Need Before You Start

Gather a handful of simple supplies, most of which you likely have at home.

• Vacuum with a soft brush or upholstery attachment
• Clean white cloths or paper towels for blotting
• Mild dish soap or an enzyme-based cleaner like OxiClean
• A spray bottle with cool water
• A fan to speed up drying

Skip harsh chemicals entirely. Bleach, ammonia, chlorine products, and strong stain removers can break down memory foam and discolor the cover. Tempur-Pedic’s own care guidance says to never use bleach or bleaching products on the mattress or its cover.

If your mattress has a removable cover, check the care tag first. Tempur-Pedic instructions say to remove the cover, wash it in cold water with mild detergent, and hang it to dry. Use a cool setting only if you machine-dry it at all, and never over-dry the fabric.

Step-By-Step: The Deep Cleaning Routine

Step 1: Strip the bed and vacuum the surface. Remove all sheets, mattress protectors, and bedding. Vacuum the entire top and sides using the soft brush attachment to lift dust, dead skin cells, and crumbs. Pay extra attention to seams and edges where debris collects.

Step 2: Blot fresh spills immediately. Press a clean white cloth or paper towel onto the wet spot. Keep blotting with dry sections of the cloth until no more liquid transfers. Press firmly but never rub or scrub, which pushes moisture deeper into the foam.

Step 3: Spot-clean stubborn stains. Mix a few drops of mild dish soap with cool water in a spray bottle. Lightly mist the stained area, then blot with a damp cloth.

Step 4: Rinse by blotting with plain water. Dampen a clean cloth with cool water and blot the area you just cleaned. This removes any soap residue that could attract dirt or break down the foam over time.

Step 5: Dry completely with airflow. Leave the mattress bare and position a fan to blow across the surface. Tempur-Pedic explicitly recommends using a fan to speed drying. Rotate the mattress or flip it if you can to expose both sides. The foam must feel completely dry to the touch before you add sheets — memory foam traps moisture easily, and a damp mattress becomes a breeding ground for mold and mildew. When fully dry, the surface feels normal again with no damp spots or lingering soap residue.

Common Mistakes That Damage Memory Foam

• Scrubbing or rubbing stains. This grinds dirt into the foam and spreads the stain. Always blot.
• Soaking the mattress. Excess water saturates the foam core, which dries slowly and invites mold growth.
• Using bleach, ammonia, or harsh chemicals. These break down the foam structure and ruin the cover’s fire barrier.
• Adding sheets before the mattress is dry. Trapped moisture under bedding is the fastest route to mildew.

Heat is another silent killer. Never use a hair dryer, iron, or steam cleaner on memory foam. High temperatures can melt or deform the material permanently.

If you’re shopping for a new mattress and want a model that’s easy to maintain, our tested roundup of 12-inch memory foam mattresses for twin beds covers options with removable, washable covers that simplify this whole process.

For tackling odors rather than stains, a light dusting of baking soda works well. Sprinkle it over the dry mattress, let it sit for several hours, then vacuum it thoroughly. This absorbs smells without adding moisture to the foam.

One caveat worth knowing: these instructions apply generally to memory foam, but Tempur-Pedic notes that some of its model-specific covers have unique washing notes in its help center. If your mattress has a specialized cover, Tempur-Pedic’s product care page lists details for each model.