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The Marshmallow®
The Marshmallow®
The Marshmallow®
The Marshmallow®
The Marshmallow®
The Marshmallow®
The Marshmallow®
The Marshmallow®

Recommended by 

Dr. Marta Carlsic | Certified PT

The Marshmallow®

Rated 4.8 Stars by 58,901+ Happy Sleepers

Nearly 5,000 GSM of MallowCore™. 

So your body can rest at night — instead of work.

  • BENEFITS

  • why Mallow

  • GUARANTEE

Wake up without the morning pain

3x denser than average — won't flatten in years

Side sleeper pressure relief for hips & shoulders

Stays cool — no night sweats

Fits under your current sheets

Nearly 5,000 GSM density — Most toppers are under 2,000. That's why they go flat.

100,000+ cooling gel particles — Embedded throughout, not just a surface layer.

400+ airflow channels — So you sleep cool without sacrificing support.

Slow-rebound memory material — Press it, watch it come back. That's density holding your shape.

CertiPUR-US® & OEKO-TEX® Certified — No harmful chemicals. Tested safe for skin contact.

90-night risk-free trial — Sleep on it for 3 months. Not better? Full refund.

Free shipping — No shipping charges. Ever.

Free returns — We pay return shipping. No restocking fees.

3-Year warranty — We stand behind it because the density holds.

58,901+ verified buyers — You're not the guinea pig. You're the proof.
$99.00
$199.00 
50% OFF

Pay in 4 interest-free installments with
Bedding size

Offer expiring soon!

Exclusive Offer! Order today for free gifts (valued at $157)!

Ⰶ FREE ($29)

Pain-Free

Mornings Protocol

 

Ⰶ FREE ($29)

Sleep Position Guide For Back & Hip Pain

 

Ⰶ FREE ($99)

3-Year Extended

Warranty

 

90-Night Sleep Trial

Better sleep, less pain, actually staying cool—that's our promise to you. Sleep on it for 90 nights. If you're not waking up feeling better, send it back. 100% risk-free.

Will this fit my mattress?

Yes. The Marshmallow® fits all standard US sizes — Twin, Twin XL, Full, Queen, King, and California King. It sits on top of your current mattress and stays in place all night. No slipping, no bunching.

How is this different from cheap toppers?

Density. Most toppers have under 2,000 GSM of support material — enough to feel soft for a few weeks, then flatten completely under your body weight. That's the Density Gap.

The Marshmallow® uses MallowCore™ — nearly 5,000 GSM of high-density support material. More than twice the industry average. It doesn't just add a soft layer on top of your pressure points — it holds your body while adapting to your shape. That's why it lasts. That's why it works when everything else didn't.

Will it sleep hot like regular memory foam?

Most memory foam traps heat because it has no way to move air through it. The Marshmallow® is different — MallowCore™ is infused with over 100,000 micro-gel particles and 400+ precision airflow channels that regulate temperature throughout the night. It sleeps cooler than standard memory foam. If heat has kept you away from memory foam in the past, this is built differently.

How quickly will I feel a difference?

Most customers feel it the moment they lie down. The nearly 5,000 GSM of MallowCore™ cradles your body instantly — the kind of deep, cloud-soft comfort you'd expect from a 5-star hotel bed, from your very first night.

Jennifer G. | Verified Buyer

This is one amazing mattress topper. Your body just melts into it and I have never slept this great. I have always had issues sleeping and used to toss and turn all night. Not anymore with this mattress topper. Highly recommend.

AS SEEN ON

Nearly 5,000 GSM. 
That's the number.

It's why this doesn't go flat — and why everything else you've tried did.

✓ Nearly 5,000 GSM MallowCore™ Support 

More than twice the density of standard toppers (under 2,000 GSM). The same density range used in 5-star hotel beds and clinical rehab surfaces. Now in a topper you can put on your bed tonight.

 

⏱ Cloud-Soft Comfort, Brick-Solid Support 

MallowCore™ cradles your pressure points instantly while keeping your spine aligned — so you wake up rested, not locked up.

58,901+ americans finally got a morning that doesn't hurt.

THE DENSITY GAP

why everything else 
went flat.

what you've been sleeping on

UNDER 2,000 GSM

Compresses under body weight by hour 3

Hips and shoulders sink into pressure points

Your muscles work all night to compensate

Flattens permanently within weeks

Think dry loose sand. Your foot sinks through. Nothing holds.

 

the marshmallow®

NEARLY 5,000 GSM OF MALLOWCORE

Holds your body weight AND adapts to your shape

Pressure distributes across the full surface

Your muscles release — your body actually rests

Maintains its density night after night

Think wet packed sand at the water's edge. It holds you — and gives only where it needs to.

The real cost of sleeping in pain.

The cheapest topper on Amazon costs 6x more per night than The Marshmallow. Here's the math no one shows you.

Amazon/Walmart Topper

"The Cheap Topper" Under 2,000 GSM.

 

Flattens within weeks to months

You end up buying 2-3 of them

No real return policy

Cost: $40-60 upfront

 

Lasts: ~90 days before flat (being generous)

$0.56/night

(before it goes flat), then you buy another one.

"Premium" Foam Topper

"The Expensive Foam" Brand-name toppers that promise more.

Sleeps hot — woke up drenched

Loses support in 4-6 months

Sitting in your closet right now

Cost: $150-300 upfront


Lasts: ~4-6 months before losing support

$1.10-$1.33/night

while it still works, then it joins the graveyard.

New Mattress

"The $3,000 Fix" A whole new mattress.

 

Might still be too firm

Can't return after 30 days

Doesn't guarantee pain relief

Cost: $1,500-4,000 upfront


Lasts: 7-10 years

$0.68-$0.98/night

and you're still waking up stiff.

 

Chiropractor

"The Appointment" Relief that lasts about 48 hours.

$75 per visit, twice a month

Feels better for 2 days, then resets

Never fixes what happens at night

Cost: $1,800/year

 

Relief Lasts: ~48 hours per visit

$37.50/night

of actual relief (only 2 nights per visit feel different)

Pain Meds / Heating Pad

"The Morning Ritual" Advil. Heating pad. 30 minutes before you can move.

Treats the symptom every morning

Never addresses the cause

You've accepted this as normal

Cost: $40/month


Relief Lasts: a few hours each morning

$1.33/night

For the rest of your life.

 

The Marshmallow®

"The Marshmallow®"
Nearly 5,000 GSM of MallowCore™.

Holds your body AND adapts to your shape

Sleeps cooler than memory foam

Won't flatten — 3-year warranty

90-night risk-free trial

Cost: $99–$199 one time (at 50% off)


Lasts: 3-5 years (warranty covers 3)

From $0.09/night

for actual, usable relief, for years.

 

CLAIM 50% OFF →

you can see the density. you can feel the weight. 
you can press it and watch it come back.

all-night density

Nearly 5,000 GSM

Every square meter has nearly 5,000 grams of high-density support material packed into it. The industry average? Under 2,000. Hotels that charge $400 a night use this range. So do clinical rehab surfaces that cost $8,000.

 

This is the number nobody told you to check. Now you know.

 

built-in cooling

100,000+ Micro-Gel Particles

Not sprayed on top. Not a surface layer that wears off in two weeks. Over 100,000 micro-gel particles infused through every inch of the full depth. Cut it open and you'd see blue all the way through.

 

They draw heat away from your body and move it through the material. That's why you stop waking up drenched at 2am.

breathes while you sleep

400+ Ventilation Channels

Press it. Watch the air push through. Every time you shift during the night, those 400+ channels actively move air through the surface. 

 

Dense doesn't have to mean hot. This is both.

 

 

Comfort and Quality

The premium features that transform ordinary mattresses into hotel-quality comfort and why cheap toppers can't compare.

✦ Gel-Infused Breathable Design 

Over 100,000 micro-gel particles and 400+ precision airflow channels work together to regulate temperature all night. Sleeps cooler than standard memory foam — no heat trap.

 

🖤 Hotel-Quality Mattress Revival 

Transform your mattress into the comfort of a 5-star hotel bed without spending $2,000 on a replacement. The same density standard luxury hotels have always used — now in your bedroom.ur content.

results based on verified post-purchase survey of 58,901+ marshmallow buyers. individual results may vary.

Morning Pain Relief

94%

Reported reduced morning pain, back pain relief, hip/shoulder improvement. 

Full Night's Sleep

91%

Reported sleeping through the night without waking from pain.

Replaced Their Mattress

84%

Said the topper made their bed feel like new — without buying a new mattress.

Would Buy Again

87%

Reported intentions of buying again for family members, friends, or other house beds.

from box to better morning in minutes

step 1

Unpack & Place

Take it out of the box, unroll it on your mattress. No tools. No straps. No setup.

step 2

Let it Expand

Give it 4-8 hours to reach its full 3-inch depth. The density needs time to fully decompress.

step 3

Sleep On It Tonight

Add your sheets, lie down, and feel the difference. By tomorrow morning, you'll know.

58,901+ Sleepers

Cheryle G.

Verified Buyer

I come from a family who sold furniture for many years so I was dreading paying retail for a new mattress. I saw your product and decided to try it. I was skeptical at first, but the very first night, I slept completely through the night without waking. I'm four months post-op cervical disc fusion C2-C7 & that is a major ordeal. I cannot emphasize how very pleased I am with my purchase & the quality of your product!

Anne S.

Verified Buyer

I had just gotten a new Sterns and Foster mattress and it was so hard it hurt my shoulder when I lay on my side. Then I bought your topper and its amazing. Not so soft that I get stuck in it like memory foam, but the perfect amount of density that supports me yet lets my shoulders and hips sink in just enough. I have slept so beautifully ever since.

Jennifer B.

Verified Buyer

I have a very bad back and have not been able to sleep in my bed for a few years because it just literally killed me. Since purchasing this marshmallow mattress, I have slept so much better and feel so much better too. I would recommend this product to everyone I know.

Dottie C.

Verified Buyer

I have lower back problems, when I was sleeping on our mattress without this pad, I felt like I was sleeping in a hammock. This pad made all the difference in the world and I'm finally waking up with no back pain.

John B.

Verified Buyer

My mattress topper arrived on time, had the usual struggles getting it on the bed, but I'm in love with it. It's been on for a week now, and I wake up every morning with no backache. I am thrilled!

June K.

Verified Buyer

I absolutely love my new mattress pad. I sleep so much better and wake up with no backache. I've had back surgeries and this is the deal. Buy this topper — you won't regret it.

Marcia L.

Verified Buyer

When I first unwrapped it, I thought what in the world is this, and it will never fit this King bed... and then it grew up. Still was not sure, seemed pretty firm... but then I went to bed. Totally could not believe it — no tossing and turning to change pressure points on my hips and shoulders. Really am impressed!

Scott S.

Verified Buyer

I have had trouble sleeping for the last 20+ years and since I got this topper I don't want to get out of bed. 100% recommended.

Matthew W.

Verified Buyer

Side sleeper and it has stopped my hip pain. Have tried other toppers and they were really hot to sleep on. This one doesn't retain heat like those. Very happy with the purchase.

Questions? We Got You

Frequently Asked
Questions

Every topper says 'cooling'... how is this one different?

Most "cooling" toppers spray a gel coating on the surface. It feels cool for a few minutes, then your body heat overwhelms it and you're right back to sweating.

The Marshmallow® is different. Over 100,000 micro-gel particles are infused throughout the full depth of MallowCore™ — not on top of it. Combined with 400+ ventilation channels, heat moves away from your body and through the material all night. It's not ice-cold. It's temperature-regulated. If you've been waking up drenched at 2am, this is built to stop that.

Will it actually help my back pain?

If your mattress is too firm or has lost its support over the years — yes, for most people. The Marshmallow® adds nearly 5,000 GSM of pressure relief exactly where you need it most: lower back, hips, and shoulders.

It won't save a mattress that's completely broken down (if yours is 15+ years old and sagging in the middle, you may need a new mattress). But if you're waking up stiff and sore every morning, most of our customers report feeling a real difference within the first week. That's why we offer the 90-night trial — so you can find out for yourself with zero risk.

I'm a side sleeper AND a hot sleeper. Will this work for me?

Yes — and this combination is actually what MallowCore™ was designed for. The nearly 5,000 GSM density cushions your hips and shoulders so they're held instead of compressed. And the 100,000+ micro-gel particles with 400+ ventilation channels regulate temperature so you're not choosing between comfort and cool.

Side sleepers need deep enough material that their joints don't push through to the mattress. Hot sleepers need airflow. You get both.

How thick is it? Will my sheets still fit?

3 inches thick — enough to make a real difference for your pressure points, but your regular fitted sheets will still work. Deep pocket sheets fit even better if you have them.

Does it have a chemical smell?

No. The Marshmallow® uses CertiPUR-US® and OEKO-TEX® certified materials — independently tested and confirmed safe for skin contact. No harmful chemicals, no formaldehyde, no heavy metals. There may be a faint new-material scent when you first unbox it, but it dissipates within a few hours. You can sleep on it the first night.

Will it slide around on my mattress?

No. It has elastic straps on each corner to keep it in place. You won't wake up to find it shifted or bunched overnight.

How do I clean it?

The topper itself is spot-clean only — you can't machine wash the foam core. Most people put their regular fitted sheet over it, which handles day-to-day protection.

If you want extra protection (especially if you have pets or tend to spill), our BambooShield Mattress Protector is designed for exactly that — it's fully removable and machine washable. It's available as an add-on at the top of this page and during checkout.

How long does it take to fully expand?

Most of the expansion happens within 4-8 hours. You can sleep on it right away, but it reaches its full 3-inch depth and optimal density after 24-48 hours. Give it a full day if you can — it only gets better.

How long will it last?

With normal use, 3-5 years. The nearly 5,000 GSM of MallowCore™ is more than twice the density of standard toppers, which means the material doesn't break down the way low-density foam does. We back it with a 3-year warranty because the density holds.

What if it doesn’t work for me?

You're covered by our 90-night sleep trial. Sleep on it for up to 90 nights. If your mornings aren't different — if you're still waking up stiff, still reaching for the wall — contact us and we'll refund you. No hoops, no fine print, no hassle. One email is all it takes.

We can make this offer because the product earns it. The density doesn't compress out in 90 days. Most people feel the difference well before then.

Money-Back Guarantee

We're so confident you'll sleep better on our 5000GSM mattress topper that we offer a satisfaction guarantee. If you're not waking up more refreshed and pain-free, simply return it within 90 days for a full refund — no questions asked.

✓ 100% Satisfaction     ✓ Fast Shipping     ✓ Easy Returns

Money-Back Guarantee

We're so confident you'll sleep better on The Marshmallow® that we back every order with a 90-night sleep trial. If you're not waking up with less pain and more rest, simply return it within 90 days for a full refund — no questions asked.

✓ 100% Satisfaction     ✓ Fast Shipping     ✓ Easy Returns