How to Wash a Memory Foam Dog Bed: Safe Cleaning Without Ruining the Foam

September 3, 2026

How to Wash a Memory Foam Dog Bed: Safe Cleaning Without Ruining the Foam

Memory foam dog beds are among the most supportive and comfortable options available for dogs with joint pain, arthritis, or orthopedic needs — but they're also among the most misunderstood when it comes to cleaning. Machine washing a memory foam dog bed is the single most common mistake pet owners make, and it permanently destroys the foam's cellular structure and support properties. This guide covers exactly how to wash a memory foam dog bed safely, preserving both the foam insert and the cover so your dog's bed stays clean, hygienic, and structurally intact for years.

The Golden Rule: Never Machine Wash the Foam Insert

Before anything else, understand this fundamental rule: the foam insert of a memory foam dog bed must never go in a washing machine. Here's why:

Agitation tears the foam cells — the mechanical action of a washing machine physically rips apart the open-cell structure that gives memory foam its pressure-relieving properties; this damage is immediate and irreversible
Water saturation destroys the foam — memory foam is extremely absorbent; when fully saturated, it becomes waterlogged and heavy, collapsing its own cell structure under its weight
It will never dry properly — a machine-washed memory foam insert retains moisture at its core for weeks; this leads to mold and mildew growth deep inside the foam, creating a health hazard that is impossible to remediate without replacement
Heat accelerates deterioration — dryer heat melts and deforms the foam, permanently changing its density and support characteristics

The memory foam insert must always be spot cleaned or carefully hand-treated. The cover, if removable, can and should be machine washed regularly.

Step 1: Assess Your Bed's Construction

Memory foam dog beds come in two main configurations, and your cleaning approach depends on which you have:

Beds with Removable Covers

These are the easiest to maintain — the cover zips or fastens off and can be machine washed independently while the foam insert stays clean and dry. This is the preferred construction for hygiene-conscious pet owners.

Beds Without Removable Covers

The entire bed must be spot cleaned as a unit. These require more frequent maintenance and careful drying to prevent moisture from reaching the foam interior.

Shop the Winter Warm Pet Bed → Pet bed being cleaned with care to protect foam interior

How to Wash the Removable Cover

Most memory foam dog bed covers are made from polyester, fleece, faux fur, sherpa, or a waterproof fabric. Always check the care label first, then follow these guidelines:

Pre-Wash Steps

Remove the cover from the foam insert — completely separate the two before cleaning
Shake and vacuum the cover — remove loose fur and dander before washing; fur that clogs washing machine filters reduces effectiveness
Pre-treat any stains — apply a 1:1 white vinegar and water solution to stains; let sit for 10 minutes before washing
Check zippers and closures — zip or fasten all closures before washing to prevent snagging

Washing Settings

Temperature: Cold — always cold for faux fur or sherpa covers; warm acceptable for plain polyester covers
Cycle: Gentle or delicate
Detergent: Mild, fragrance-free, pet-safe liquid detergent; half the normal dose
Additives: ½ cup white vinegar to the drum for deodorizing and fabric softening
Extra rinse: Always run an additional rinse to remove all detergent from the fibers
Avoid: Bleach, fabric softener, heavily scented detergents

Drying the Cover

Tumble dry on low heat for faux fur or sherpa covers — check every 20 minutes and fluff
Medium heat acceptable for plain polyester covers
Or air dry flat in a well-ventilated area
Do not return the cover to the foam until completely dry — a damp cover traps moisture against the foam interior

How to Clean the Memory Foam Insert

With the cover off, inspect the foam insert and clean it based on what you find.

For Light Odor and Surface Grime (No Visible Staining)

Take the foam outside and shake gently to dislodge surface debris
Sprinkle baking soda generously over all surfaces — including the underside
Leave for 1–2 hours — the baking soda absorbs odor from the foam surface without moisture
Vacuum thoroughly using the upholstery attachment — remove all baking soda residue
Air in a well-ventilated area for 30–60 minutes before replacing the cover

For Spot Cleaning Stains or Accidents on the Foam

Blot immediately if the accident is fresh — press firmly with towels to absorb as much liquid as possible before it penetrates deeper into the foam
Mix a cleaning solution — 1 tablespoon mild dish soap or pet-safe detergent in 2 cups of cold water
Apply sparingly to the stained area — dampen a clean cloth with the solution and press gently onto the stain; do not pour liquid directly onto the foam
Work gently in circular motions — lift the stain without spreading it
Rinse by pressing a damp cloth — use a cloth dampened with plain cold water to remove detergent residue; press and lift rather than rubbing
Blot dry — press clean dry towels firmly against the treated area to absorb as much moisture as possible
Apply baking soda to the damp area — helps absorb remaining moisture and odor as it dries
Allow to dry completely before covering — this is critical; see drying instructions below

For Urine Accidents on the Foam Insert

Blot aggressively and immediately — the longer urine sits, the deeper it penetrates; use thick towels and press firmly for 30 seconds at a time, replacing with fresh towels repeatedly
Apply enzyme cleaner — spray an enzyme-based pet urine cleaner onto the affected area; enzyme cleaners are the only treatment that breaks down uric acid crystals in foam
Cover with plastic wrap — slows evaporation and keeps enzymes active and working deeper into the foam
Leave for 8–24 hours — enzyme cleaners need extended contact time to fully digest uric acid in dense foam
Remove plastic and blot gently
Allow to dry completely — may take 2–3 days for thick foam; see drying section below

How to Dry a Memory Foam Dog Bed Insert

Drying is the most critical and most commonly mishandled step. Incomplete drying leads to mold and mildew growth inside the foam — a problem that cannot be fixed without replacing the insert.

Never put in the dryer — dryer heat melts and deforms memory foam permanently
Air dry flat — lay the foam on a clean surface in a warm, well-ventilated area
Use a fan — direct airflow dramatically accelerates drying of dense foam
Elevate the foam — placing it on a drying rack or across two chairs allows air circulation on both sides simultaneously
Flip regularly — every few hours to ensure both sides dry evenly
Allow 24–72 hours depending on foam thickness and the extent of moisture exposure
Test for complete dryness — press firmly into the thickest area of the foam; if it feels cool or damp, it needs more time; memory foam that feels dry on the surface can still be damp at the core
Do not cover until fully dry — replacing the cover over damp foam traps moisture and guarantees mold growth

How Often to Clean a Memory Foam Dog Bed

Cover: every 1–2 weeks — machine wash the removable cover regularly to prevent odor and bacteria buildup on the surface your dog contacts directly
Foam insert: baking soda refresh monthly — dry baking soda treatment keeps the foam fresh between deep cleans
Foam insert: spot clean as needed — immediately after any accident; don't let moisture sit
Full vinegar spray of foam surface: every 2–3 months — light misting with 1:1 vinegar-water solution, allowed to dry completely, sanitizes the foam surface

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When to Replace the Memory Foam Insert

Even with excellent care, memory foam doesn't last forever. Replace the foam insert when:

It no longer springs back after your dog gets up — compressed foam provides no orthopedic benefit
Persistent urine odor returns within hours of cleaning — deep foam contamination that can't be remediated
Visible mold or mildew is present — a health risk that cleaning cannot safely resolve
The foam has become crumbly or is losing chunks — degraded foam can be ingested by the dog
The bed is more than 2–3 years old with heavy daily use

Why Many Pet Owners Choose Faux Fur Beds Over Memory Foam

Given the cleaning complexity of memory foam, many pet owners — especially those whose dogs are prone to accidents or who want a simple maintenance routine — find that a high-quality faux fur donut bed is a more practical choice. A fully machine-washable faux fur bed like the Winter Warm Pet Bed can be completely cleaned in a single wash cycle, dried in the same day, and returned to your dog within hours.

For dogs with joint issues who need cushioning, a thick, well-filled faux fur donut bed provides excellent support through its bolster design and plush fill — while remaining fully washable in a way that memory foam simply cannot match.

Final Thoughts

Knowing how to wash a memory foam dog bed correctly comes down to one core principle: the foam insert never gets machine washed or submerged. Wash the cover regularly, dry-treat the foam monthly with baking soda, spot clean accidents immediately with minimal moisture, and always allow the foam to dry completely before covering. Follow these rules and your memory foam dog bed will remain hygienic, odor-free, and structurally supportive for years.

Shop the Winter Warm Pet Bed →