Mattress
The manufacturer's answer is that you largely do not clean it. You protect it, vacuum it, wash the cover — and above all keep it dry.
What not to do
Unsafe
Do not do this. The risk is established, and it is described below.
Evidence
Strongly supported
Sources
Tempur Sealy International · Manufacturer documentation
Relied on for: That mattresses should never get wet, that waterproof covers and encasements are recommended, and that a mattress which does get wet is towelled and air-dried. (states this directly)
Precautions
- Check the manufacturer's instructions
- Test on an inconspicuous area first
- Ventilate the area
Start here
What this is, what tends to go wrong with it, and what to do about it.
Made from
What tends to go wrong
Two problems in one: a visible mark that ordinary cleaning removes, and an odour that survives it. The second is why this stain has a reputation.
Why it is difficult: Adsorption of odour molecules, Why a smell comes back when the weather turns
A living growth, not a stain. Killing it and removing the staining are two separate jobs, and neither addresses the moisture that caused it.
Why it is difficult: Porous and non-porous surfaces, Moisture control and recurrence, Cleaning, sanitising and disinfecting, Organic load, Surface roughness
Not a hygiene failure and not removable by cleaning alone. They live on shed skin in soft furnishings, and humidity governs them more than vacuuming does.
Why it is difficult: Why different surfaces get different dirt, Moisture control and recurrence
The science behind this: Moisture control and recurrence, Capillary absorption
In detail
Almost everything written about cleaning a mattress treats it as upholstery you cannot lift. Two credible bodies disagree about the treatment and agree about the constraint. THE MANUFACTURER'S POSITION IS THAT A MATTRESS IS PROTECTED RATHER THAN CLEANED. It leads with a prohibition — mattresses should never get wet — and grants stain treatment grudgingly: IF YOU MUST, mild soap with COLD water, applied lightly. Dry-cleaning fluid of any type is excluded on any mattress. Routine care is vacuuming and washing the COVER. THE BED TRADE ASSOCIATION IS MORE WILLING, AND ITS FIRST INSTRUCTION IS THE ONE READERS SKIP: strip the bedding and STAND THE MATTRESS ON ITS SIDE, because gravity decides whether a spill reaches the filling. Then sponge immediately with cold water, without over-wetting. Urine takes a WARM detergent or upholstery-shampoo solution, then cold water with a few drops of antiseptic; VOMIT IS COVERED TOO — lift the solids without spreading, then treat as urine. Oily marks take an AEROSOL grease solvent, cautiously on foam. Warm against cold, and a solvent against a class prohibition: the two sources genuinely disagree. Neither addresses YELLOWING.
Why
- Mattress is explained by Moisture control and recurrence
Related
- Mattress is made from Memory foam
- Mattress is commonly affected by Urine
- Mattress is commonly affected by Mould
- Mattress is commonly affected by House dust mites
Where the sources disagree
A mattress has been stained. Cold water and mild soap only, or the trade body's warm detergent and solvent?
Part of this is scope and part of it is not. THE SOLVENT DIFFERENCE IS PARTLY SCOPE. The manufacturer writes for a range in which foam is usual, and foam has least tolerance for a solvent and no way to flush one out. The trade association writes across UK beds including sprung ones, and it does not ignore the problem — it attaches 'cautiously on foam' to the same instruction. The more foam is present, the closer its advice moves to the prohibition. THE TEMPERATURE DIFFERENCE IS NOT SCOPE. Warm and cold are not two readings of one instruction; they are opposite answers about the same sponge on the same stain, and no construction difference explains it. It stands unresolved. What neither disputes is the more useful part: act immediately, do not over-wet, and get the liquid out of the mattress's path first. Standing the mattress on its side is the only step in either document that changes the outcome rather than the appearance, and the manufacturer contradicts nothing in it.
What to do: Do the two things both bodies support first, because they are the ones that matter: strip the bedding and stand the mattress on its side so the spill stops travelling, then lift what you can with cold water and no flooding. After that, let the construction decide. On a foam or foam-topped mattress take the manufacturer's line — cold, mild soap, light, and no solvent at all. On a sprung mattress the trade association's warm detergent procedure is a credible body's published instruction and is available to you. Whichever you use, the limit is the same: what has soaked below the surface is not reachable by anything applied to the surface, which is why both documents end up recommending a protector rather than a technique.
The sources genuinely disagree
Sources for this page
Sources
Tempur Sealy International · Manufacturer documentation
Relied on for: That mattresses should never get wet; covers and encasements are recommended; routine care is vacuuming and washing or replacing covers; stains are treated only if necessary with mild soap and cold water applied lightly; dry-cleaning fluid of any type is excluded; a wet mattress is towelled and air-dried; and a loose thread is cut rather than pulled. (states this directly)
Bed Advice UK — The National Bed Federation · Trade or professional body
Relied on for: That the bedding is stripped and the mattress stood on its side to stop liquid reaching the filling; that urine takes a warm solution of mild detergent or upholstery shampoo then cold water plus a few drops of antiseptic; that vomit and diarrhoea are treated as urine once solids are lifted; and that oily marks take an aerosol rather than liquid grease solvent, cautiously on foam. (states this directly)