Your mattress and couch are the hardest-working fabric in your home, and they quietly absorb years of sweat, body oils, spills, and humidity. None of that shows, but you can smell it. Here is how to bring soft furniture back to fresh without soaking it or damaging it.

Why soft furniture holds odor

Mattresses, couches, and chairs are thick layers of fabric and foam that act like a sponge for everything that lands on them. Over time, bacteria feed on the absorbed oils and sweat and produce that stale, lived-in smell. Because the odor lives deep in the material, spraying the air does nothing. You have to treat the fabric itself, the same principle behind getting smells out of clothes that will not wash out.

The baking soda reset

For a deep refresh, baking soda is a genuinely useful first pass because it absorbs moisture and helps neutralize odor compounds:

  • Sprinkle a generous, even layer over the mattress or cushions.
  • Let it sit. Thirty minutes helps, but several hours or overnight is better for set-in smells.
  • Vacuum it up thoroughly with an upholstery attachment.

A few cautions: always spot-test first, and avoid baking soda on delicate fabrics like silk and velvet, and on leather, which it can dry out.

Wash, air, and neutralize

  • Strip and wash the bedding on the hottest safe setting, including mattress protectors and pillow covers.
  • Air it out. Open the windows, and if you can, let sunlight reach the mattress for a while.
  • Neutralize between deep cleans. Lightly mist the mattress, couch, or upholstery with a fabric-safe odor neutralizer. Mist, do not soak, and let it dry fully before you make the bed or sit down.

Why a neutralizer is the right finish

Baking soda and washing handle the bulk, but a source-level neutralizer is what keeps soft furniture fresh between resets, especially mattresses and couches you cannot toss in the laundry. Because Dr. Whiff works with beneficial bacteria cultures and is at least 97% naturally derived with a light scent, it refreshes fabric without heavy perfume.

Keep a bottle handy for between-wash freshness with subscription refills, or browse the full lineup to pick your scent.