- Free shipping & returns
- 5-year warranty
- Ships in 1 to 2 days
- Made in Phoenix, AZ
Firm Mattress Topper
Two-layer support topper with washable cover and straps.
- Firm support foam: 2-layer construction, supportive without sinking
- Gel-infused top layer for targeted pressure relief
- Washable cover + straps keep it fresh and in place
- Fiberglass free, CertiPUR-US, made in Phoenix, AZ
Details
Firm where it counts. A dense support layer under a gel memory foam comfort layer. You get pressure relief at the surface and a stable, supportive feel underneath, with no hammocking. The right pick for back and stomach sleepers, heavier sleepers, and anyone whose mattress has gone soft.
Cooling, machine-washable cover. Breathable cover regulates temperature and unzips for the wash.
Stays in place with straps. Built-in straps fit mattresses from 6 to 16 inches tall.
Materials & care
Gel-infused open-cell memory foam with a zip-off cover. Machine wash the cover cold on gentle, tumble low or hang dry. Spot clean the foam with a damp cloth and mild soap; never soak or machine wash foam. Rotate head to foot every few months.
Certifications
CertiPUR-US certified foam: made without ozone depleters, PBDE flame retardants, mercury, lead, or heavy metals, and low VOC for indoor air quality. Fiberglass free, no fire-retardant sprays, hypoallergenic. Poured, cut, and quality-checked in our Phoenix, Arizona factory.
Dimensions & shipping
- Twin 38×75
- Twin XL 38×80
- Full 54×75
- Full XL 53×80
- Queen 60×80
- King 76×80
- California King 72×84
Thickness: 3 Inch
Measured in inches, width x length. Twin 38×75, Twin XL 38×80, Full 54×75, Full XL 53×80, Queen 60×80, King 76×80, California King 72×84. Need something else? Get a custom-cut quote.
Shipping: compressed and boxed (13x13x13 or 15x15x15), ships same or next business day via FedEx Ground, arrives in 2 to 3 business days in the contiguous US. Allow 24 to 48 hours for full expansion.
Cooling Cover
Breathable cover regulates temperature and unzips for the wash.
Stays in Place w/ Straps
Built-in straps fit mattresses from 6 to 16 inches tall.
Made in the USA
Every topper is made in our Phoenix, AZ factory and quality-checked before it ships.
Firm Mattress Topper
Why buy this topper
Firm where it counts
A dense support layer under a gel memory foam comfort layer. You get pressure relief at the surface and a stable, supportive feel underneath, with no hammocking. The right pick for back and stomach sleepers, heavier sleepers, and anyone whose mattress has gone soft.
- Gel-infused, perfected over yearsWe have poured and refined this foam for years. The gel is blended through it, not sprayed on, so it stays cool for the life of the topper.
- Sleeps cool, responds fastOpen-cell foam lets heat escape, and it recovers as you move so you never feel stuck.
- Washable cover with strapsA machine-washable cooling cover protects the foam, and corner straps hold the topper in place on mattresses from 6 to 16 inches.
- Safe, non-toxic foamWater-based process, no fiberglass, no fire-retardant sprays, CertiPUR-US certified, low odor. Safe for the whole family.
The LOUNJ difference
We're the factory
Most bedding brands buy foam from a catalog and put their name on it. We built a factory instead. Every step happens under our roof in Phoenix, Arizona: chemistry, pouring, curing, cutting, quality check. That is why we can tell you exactly what is in this product, price it without a middleman, and stand behind it for years.
- Thickness
- 3 Inch
- Foam
- Gel-infused open-cell memory foam
- Certified
- CertiPUR-US
- Fiberglass
- None. No fire-retardant sprays.
- Made in
- Phoenix, Arizona
- Warranty
- 5 years
- Trial
- 30-Night Happiness Guarantee
Ordinary topper vs. LOUNJ Firm Topper
Ordinary topper
- Bare foam, gets dirty, cannot be washed
- Slides around the bed
- Imported foam, unknown chemistry
- Traps heat
- Flattens in a year
- Fiberglass in the cover
- Retail markup
LOUNJ Firm Topper
- Washable cooling cover
- Mattress straps hold it in place
- Poured in Phoenix, CertiPUR-US certified
- Gel-infused open-cell foam
- 5-year warranty, 5 to 10 year life
- Fiberglass free, no fire-retardant sprays
- Factory direct, no middleman
Compare
Which one is right for you?
 Gel Memory Foam Mattress Topper |  Gel Memory Foam Mattress Topper 2.0 |  Firm Mattress TopperThis product | |
|---|---|---|---|
| Foam | Gel memory foam | Gel memory foam | Gel memory foam over firm base |
| Thickness | 2, 3, or 4 in | 2 or 3 in | 3 in |
| Cover | Bare foam, use your sheet | Washable cooling cover | Washable cooling cover |
| Straps | No | Yes, 6 to 16 in mattresses | Yes, 6 to 16 in mattresses |
| Best for | Best value, any size incl. RV and custom | Adjustable bases, kids, easy washing | A mattress that has gone soft |
| Feel | Plush contour | Plush contour | Supportive |
| Price | $64.9920% off | $109.9920% off | $122.9920% off |
FAQs
Still have a question? Call (800) 556-1333 and you get our team in Phoenix, not a call center.
Questions people ask
Who is the Firm Mattress Topper for?
Back and stomach sleepers, people over about 200 pounds, and anyone whose mattress feels too soft or has started to sag. If you want to sink in and be cradled, choose the standard Gel Topper instead.
Does it ship compressed? How long does it take to expand?
Yes. Every topper is compressed and boxed for easy shipping. Once you unroll it, allow 24 to 48 hours for full expansion, especially in colder weather. You can sleep on it the first night, it will just keep filling out.
Can I put a mattress topper on an old mattress?
Yes. That is one of the best uses for one. A topper refreshes the comfort layer of an older mattress and can extend its life for years without the cost of a new bed. If the mattress is sagging badly, pair the topper with a firm base or consider our Firm Mattress Topper.
How long will a LOUNJ topper last?
Our memory foam toppers typically last 5 to 10 years, and we guarantee them for 5. Cheap imported toppers usually last 1 to 3 years before they flatten or crumble.
Is the foam safe and hypoallergenic?
Yes. Our gel-infused memory foam is CertiPUR-US certified: no BPAs, ozone depleters, or heavy metals. It is fiberglass free, made without fire-retardant sprays, hypoallergenic, and low odor thanks to a good Arizona sun-bake before it ships.
Is your foam really made in the USA?
Yes. We source the chemicals, pour, cut, and package the foam ourselves in our Phoenix, AZ factory. Nothing is imported and relabeled.
What is your return policy?
Every topper comes with our 30-Night Happiness Guarantee. Sleep on it for 30 nights from delivery, and if you are not happier, contact us and send it back. Free returns, no fees. We ask that you give it at least 10 nights so your body can adjust.
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