Short answer
Purple's cleaning guide says 'you should not steam clean a Purple mattress,' and not to steam memory foam, latex or adjustable beds, because 'the heat and water could damage its materials.' It doesn't mention dry-vapor steam. It also says the cover isn't meant to be removed. Following the label is the safe default. Sleep Sanitation's adjustable-output method is our own, not a Purple exemption, so check your warranty terms.
Key terms used on this page
- Care instructions (manufacturer care guidance):
- What a manufacturer publishes about cleaning its product: a sewn-in label, a care web page, a help-center article or a brand blog post. They carry different weight. A sewn-in label or a product-care page speaks for a specific product; a blog post often gives general advice about many mattress types. On this hub we name the document type for every quote.
- Dry-vapor steam:
- Steam made in a sealed, pressurized boiler and released through a hose and nozzle as hot vapor with a low liquid-water content. In the vendor specifications we reviewed, professional units are rated from 80 psi (Ladybug 2350) to 150 psi (Daimer), with stated boiler temperatures from about 345°F (Optima) to 360°F (Daimer); these are maker claims. Daimer describes its steam as about 5% water or less and Vapor Clean claims 'just 5-6% moisture'; that is a vendor claim, not an independent standard.
- Memory foam (viscoelastic foam):
- An open-cell, slow-recovery polyurethane foam that softens with body heat and conforms to pressure. Because its cells are open, liquid can travel into it, and because it is dense and insulating, it is slow to dry.
- Hybrid mattress:
- A mattress that combines a coil support core with substantial comfort layers of foam, latex or another material on top. What applies to a hybrid depends on what sits under the cover: the coils below or the foam or latex above.
- Moisture load:
- The total amount of water a cleaning process puts into a mattress, whether from spray, steam condensate, shampoo or rinse. It is the main thing that decides how long a mattress takes to dry.
- Pass speed:
- How fast the steam tool moves across the fabric. A faster pass gives the fabric less time under the tool, so less heat and less condensed water reach any one spot. Purple's general guide makes the same point for home steamers: move 'without leaving it in one spot for too long.'
Purple publishes the most detailed steam guidance of any brand we checked, and it says two things that can look contradictory at first. Its guide explains how to steam clean innerspring and hybrid mattresses, then says plainly not to steam clean a Purple mattress. This page quotes the guide, explains how the two statements fit together, and then gives Sleep Sanitation's interpretation separately.
Not affiliated with or endorsed by any manufacturer listed. Brand names are used only to identify products and their published care instructions.
1. What the manufacturer actually says
The source is Purple's blog guide How To Clean a Mattress in 9 Steps + Tips To Keep It Fresh ("Last Updated October 16, 2025"; accessed 2 October 2026). It covers mattresses in general and has a section on cleaning a Purple mattress.
On steam:
"After vacuuming, you can steam clean your innerspring or hybrid mattress, but you should not steam clean a memory foam, latex, or adjustable mattress since the heat and water could damage its materials. Note that you should not steam clean a Purple mattress."
Directly after that, for the beds it does allow: "Set the steam cleaner to 250 degrees Fahrenheit to kill dust mites and other bacteria. Move the steam cleaner across the mattress without leaving it in one spot for too long."
On foam: "Avoid steam cleaning a memory foam mattress, as this can leave it waterlogged."
On chemicals: "You should also avoid cleaning supplies like shampoo, undiluted hydrogen peroxide, bleach, ammonia, and solvent-based cleaners, which can damage the foam."
On the cover: "While your Purple mattress cover has a zipper, it is not meant to be unzipped and removed." And: "If you remove the cover and put it through the washer and dryer, the mattress cover will shrink, voiding our return and warranty policies."
On sunlight: "We advise against placing your Purple mattress in direct sunlight as damage from the sun is excluded from warranty coverage."
2. Does it mention steam?
Yes. Purple names steam several times. For a Purple mattress, the answer is a direct no: "you should not steam clean a Purple mattress." The guide also says not to steam memory foam, latex or adjustable mattresses of any brand, and it permits home steaming of innerspring and hybrid mattresses generally.
Why both? The guide is general advice about every common mattress type. Purple mattresses are built around what Purple calls its "GelFlex Grid," and the guide adds that it "requires the mattress to stay upright." The Purple-specific sentence overrides the general one for Purple's own beds, including its hybrids.
3. Does it mention dry-vapor steam?
No. The guide gives directions for a household steam cleaner, with a 250°F setting, and never mentions dry-vapor steam or pressurized low-moisture steam. Its prohibition on steaming a Purple doesn't distinguish between types of steam.
4. The restrictions it states
| Variable | What Purple's guide says |
|---|---|
| Water | Memory foam "can absorb liquid and be harder to dry"; let the mattress "fully dry" |
| Soaking | Steam on memory foam "can leave it waterlogged"; carpet cleaners "could overly saturate a memory foam mattress" |
| Heat | "the heat and water could damage its materials" (foam, latex, adjustable) |
| Steam | Not on a Purple mattress, memory foam, latex or adjustable beds |
| Chemicals | Shampoo, undiluted hydrogen peroxide, bleach, ammonia, solvent-based cleaners |
| Covers | Not meant to be unzipped and removed; washing voids return and warranty policies |
| Sunlight | Sun damage "is excluded from warranty coverage" |
What Purple recommends instead is vacuuming with an upholstery attachment, spot cleaning with "a mild detergent, upholstery cleaner, or enzyme cleaner," baking soda, and airing the mattress until it is dry.
5. How dry vapor differs from wet cleaning
Purple names two reasons for its steam warning: heat and water. Those are the same two variables Hub 1 treats separately in heat and moisture are separate variables. A household steamer set to 250°F, or a carpet extractor, puts liquid into the bed; Purple itself says an extractor "could overly saturate a memory foam mattress."
A dry-vapor system makes steam in a pressurized boiler. For the Magnum XP, one of the three Vapor Clean machines we run, Vapor Clean claims "just 5-6% moisture" (product page; maker's claim). Less liquid changes the moisture load but doesn't remove heat, which is why technique matters. Purple's own instruction to keep the steamer moving reflects the same idea.
6. Sleep Sanitation's professional interpretation
This section is our view, not Purple's.
Purple's instruction is unambiguous, and following it is the safe default: vacuum, spot clean with a mild detergent, air the mattress, and don't steam it.
Sleep Sanitation does clean Purple mattresses. Our position is that we can sanitize any mattress or topper, because the two reasons Purple gives, heat and water, are both things we control. We match the machine to the job from our Vapor Clean equipment (the Magnum XP, ProV 350 and Pro6 Duo); Vapor Clean describes the Magnum XP's "Fully Adjustable Steam Regulator" (maker's claim). Our technician sets the steam output for the cover and grid and keeps the pass speed quick, so heat never sits in one spot. We don't unzip or remove the cover, and we don't use any of the five cleaners Purple names.
That is our method and reasoning. It is not an exemption from Purple, and Purple hasn't reviewed it. Check your warranty terms before booking. Purple ties cover washing and sun damage to its warranty and return policies; we can't tell you how it would treat a cleaned mattress. Contact Purple if you're unsure. This is not legal advice.
Our Purple mattress cleaning service page describes what a visit includes.
Purple's step-by-step routine
Purple's guide lists nine steps, and none of them, for a Purple mattress, involves steam. In order: strip and wash the bedding; vacuum "with the upholstery attachment" and "Go over the seams and corners several times"; spot clean "with a mild detergent or enzyme cleaner"; deodorize with baking soda, letting it "sit for several hours before vacuuming it up"; and air the mattress until it is dry. "Always make sure your mattress is properly dry before replacing the bedding," the guide says, because damp bedding "could prevent your mattress from drying completely and create mold and mildew growth."
On rotation: "Most modern-day mattresses (including Purple mattresses) should not be flipped." On protection, Purple recommends a waterproof protector to make cleaning easier. And it closes its steam paragraph with advice we'd repeat: "If you have any doubts, refer to the manufacturer's care instructions and your warranty."
Common misreadings
"Purple says hybrids can be steamed, and Purple makes hybrids." The hybrid sentence is general advice. The Purple sentence that follows applies to every Purple mattress.
"The zipper means the cover comes off." Purple says the cover "is not meant to be unzipped and removed."
"Low-moisture steam isn't really steam cleaning." Purple doesn't make that distinction. Its rule is "you should not steam clean a Purple mattress."
Where this fits
Compare Purple with other brands in the compatibility guide. For materials, see memory foam, hybrid and the hub overview. The Tempur-Pedic page covers the other foam-led brand. For what a visit involves, see our process.
Related guidance and background
How other manufacturers word the same issue, for comparison:
- Tempur-Pedic (US). "TEMPUR® material should never become wet" (Tempur-Pedic).
- Casper. "Be careful not to saturate the mattress with too much water and/or detergent, as the foam in the mattress core will soak up water and detergent" (Casper).
- Sleep Number. "Use only a little water—just enough to lightly dampen the spot" (Sleep Number).
Public guidance and reference sources behind this page:
- Clean, sanitize, disinfect. The CDC defines the three words differently: cleaning removes dirt and germs, sanitizing lowers germs to a safer level, and disinfecting kills germs, usually with a registered chemical used as labeled. We use "sanitize" in that sense and make no disinfection claim.
- Drying. The EPA's mold and moisture guide advises drying wet materials within 24 to 48 hours, and says that in most cases mold won't grow if you do. That is the public-health reason behind every manufacturer's drying instruction.
What we don't know
- Purple's product labels. We quote the web guide; the label on your model may differ.
- Grid-specific test data. Purple doesn't publish data on how heat or steam affects the GelFlex Grid.
- Dry-vapor steam. Purple hasn't addressed it.
- Warranty outcomes. Only Purple can decide a claim.
Changelog
- 2 October 2026: First published. Purple's guide (last updated 16 October 2025) accessed on this date.
Sources
- How To Clean a Mattress in 9 Steps (last updated 16 Oct 2025, accessed 2026-10-02) · Purple
- Magnum XP-Vac product page (maker's claims, accessed 2026-10-02) · Vapor Clean
- Product care (US, accessed 2026-10-02) · Tempur-Pedic
- How to clean your mattress: a mattress care guide (accessed 2026-10-02) · Casper
- Cleaning Your Mattress (support, accessed 2026-10-02) · Sleep Number
- Cleaning and disinfecting your school (definitions) · CDC
- A brief guide to mold, moisture and your home · US EPA
Last reviewed October 2, 2026. Manufacturer specifications and care instructions change; check the current version for your exact model. This page is general information, not medical advice. How we source and check pages: editorial standards.