How to Clean Sofa Cushions: A Complete Guide for Every Cushion Type

Sofa cushions take the brunt of daily use — they absorb spills, trap dust, collect pet hair, and flatten over time. Knowing how to clean them properly (without damaging the filling or fabric) keeps your sofa looking and feeling its best. This guide covers every cushion type and cleaning method.

What You'll Need

• Resolve Multi-Fabric Cleaner & Upholstery Stain Remover — for spot-cleaning fabric cushion covers
• Rocco & Roxie Enzyme Stain & Odor Eliminator — for organic stains and odors in the cushion filling
• BISSELL Little Green Portable Upholstery Cleaner — for deep cleaning cushion surfaces
• Amazon Basics Microfiber Cleaning Cloths (24-pack)
• Mild laundry detergent
• Vacuum with upholstery attachment

Step 1: Check the Care Label

Before cleaning, check the care tag on each cushion cover. Look for:

• W — Water-based cleaners safe
• S — Solvent-based cleaners only
• W/S — Either method works
• X — Vacuum only
• A washing machine symbol — the cover is machine washable

Step 2: Vacuum All Cushions

Use the upholstery attachment to vacuum both sides of every cushion, including the sides and seams. This removes loose dirt, crumbs, and pet hair before any wet cleaning begins.

Cleaning Removable Cushion Covers

Machine Washable Covers

1. Unzip and remove the covers from the cushion inserts
2. Pre-treat any visible stains with Resolve Fabric Cleaner before washing
3. Wash on a gentle cycle with cold water and mild detergent
4. Air dry only — tumble drying can cause shrinkage and damage the zipper
5. Put the covers back on while slightly damp to prevent wrinkling

Hand Wash Only Covers

1. Fill a basin with cool water and a small amount of mild detergent
2. Submerge the cover and gently agitate — don't scrub or wring
3. Rinse thoroughly with cool water until no soap remains
4. Press out excess water (don't wring) and lay flat to dry

Cleaning Non-Removable Cushions

If your cushion covers don't unzip, you'll need to clean them in place.

1. Spot-treat stains with Resolve Fabric Cleaner — spray on, wait 2 minutes, blot with a microfiber cloth
2. For a deeper clean, use the BISSELL Little Green to clean and extract moisture from the cushion surface
3. Allow to dry completely before replacing on the sofa — prop cushions upright to speed drying

Cleaning the Cushion Inserts (Foam or Fiber Fill)

If the insert itself has absorbed odors or stains (from a spill that soaked through the cover), treat it separately:

1. For odors: sprinkle baking soda over the insert, let sit for 30 minutes, then vacuum off
2. For stains: apply Rocco & Roxie Enzyme Cleaner to the affected area, blot, and allow to dry completely in a well-ventilated area
3. Never submerge foam inserts in water — they take extremely long to dry and can develop mildew

Drying Cushions Properly

Proper drying is critical to prevent mildew inside the cushion filling:

• Stand cushions upright or prop them against a wall to allow airflow on all sides
• Place near an open window or use a fan to speed drying
• On sunny days, place cushions outside for 1–2 hours — sunlight naturally kills bacteria and speeds drying
• Never put cushions back on the sofa until completely dry

How Often Should You Clean Sofa Cushions?

• Weekly: Vacuum and flip cushions to distribute wear evenly
• Monthly: Spot-clean any stains and deodorize with baking soda
• Every 3–6 months: Wash removable covers and deep clean inserts

Frequently Asked Questions

Can I put sofa cushion inserts in the washing machine?

Fiber-fill inserts can sometimes be machine washed on a gentle cycle, but foam inserts should never go in the washing machine — the agitation breaks down the foam. Always check the care label and air dry foam inserts completely.

How do I get rid of a musty smell in sofa cushions?

Musty smells usually mean moisture is trapped inside the filling. Air the cushions outside in sunlight, apply baking soda to the surface, and use an enzyme cleaner on any organic stain sources. If the smell persists, the foam filling may need to be replaced.

My cushion covers shrank after washing — what happened?

Hot water or tumble drying causes most fabric covers to shrink. Always wash in cold water on a gentle cycle and air dry. If covers are already slightly shrunken, try putting them back on while still slightly damp — the fabric stretches more easily.