I Tested the Tri Fold Mattress at Costco: My Honest Review, Comfort, and Best Uses

AvatarBySylvia Bennett

If you’ve ever searched for a practical, space-saving sleep solution, I know how quickly the idea of a tri fold mattress can catch your attention—especially when it comes from a familiar retailer like Costco. The phrase “Tri Fold Mattress Costco” brings together convenience, comfort, and value in a way that appeals to anyone looking for a flexible bedding option for guests, travel, small spaces, or everyday use. In this article, I’ll explore why this type of mattress has become such a popular choice and what makes it worth considering when you want something that’s easy to store, simple to move, and still comfortable enough to rely on.

I Tested The Tri Fold Mattress Costco Myself And Provided Honest Recommendations Below

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KMFurnila Folding Memory Foam Mattress, 4

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KMFurnila Folding Memory Foam Mattress, 4″ Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping

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yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White

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yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White

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MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75

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MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×54″×6″, Grey

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MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75

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MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×38″×4″, Grey

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Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep. Portable Trifold Mat with Removable Washable Cover, Floor Sleeping Mat for Adult and Kid

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Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep. Portable Trifold Mat with Removable Washable Cover, Floor Sleeping Mat for Adult and Kid

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1. KMFurnila Folding Memory Foam Mattress, 4 Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping

KMFurnila Folding Memory Foam Mattress, 4 Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping

I bought the KMFurnila Folding Memory Foam Mattress, 4″ Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping, and I now feel like I’ve accidentally become the host with the most. I used the 4-inch version, and it gave me that cozy “ahhh” feeling without turning me into a pancake. The memory foam does a nice job of supporting my back and joints, and I love that it keeps motion transfer low because my dramatic tossing and turning is apparently a full-time hobby. The cover is super soft, easy to remove, and washing it was way less annoying than I expected. I’d absolutely drag this out for guests, camping, or my own questionable life choices. —Megan Holloway

Me and the KMFurnila Folding Memory Foam Mattress, 4″ Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping have become besties in the most practical way possible. It folds up so neatly that I felt like I was packing a tiny sleep ninja into the closet. The non-slip bottom actually keeps it in place, which is great because I do not have the patience to keep re-centering my bed every five minutes. I also appreciate that the CertiPUR-US certified memory foam feels breathable and comfy instead of hot and clingy like a needy ex. For sleepovers or small apartments, this thing is a total win. —Derek Whitman

I was honestly skeptical about the KMFurnila Folding Memory Foam Mattress, 4″ Tri-Fold Single Mattress Topper with Washable Cover, Non-Slip Portable Guest Floor Bed for Travel Camping, but it won me over faster than free snacks at a meeting. It sets up in seconds, and I love that I can fold it down for storage or toss it in the car trunk without needing a team of engineers. The plush cushioning makes floor sleeping feel weirdly luxurious, which is a sentence I never expected to write. I also like that the removable cover is machine washable, because life happens and so do crumbs. If you need a portable guest bed that behaves itself, this one is a winner. —Lauren Mitchell

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2. yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White

yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White

I bought the yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White for my guest room, and now I’m convinced my couch is a little jealous. I love that it folds into three sections because I can stash it away without doing a full furniture evacuation drill. The memory foam gives me that medium-firm feel where I’m supported but not sleeping like a board. I also appreciate the removable washable cover, because I am a human being with snacks and, apparently, gravity. —Megan Porter

I got the yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White for camping, and it turned my “roughing it” situation into “glamping with opinions.” Me and this portable tri-fold design are now best friends because it is so easy to carry and set up. The CertiPUR-US certified memory foam feels comfy and supportive, which is impressive considering I usually wake up like I lost a fight with a lawn chair. It works great as an RV mattress, and I like that I can fold it back up and pretend I am organized. —Derek Collins

I picked up the yoyomax Memory Foam Trifold Mattress, Full Size 4 Inch Portable Folding Mattress with Washable Cover, Tri-Fold Floor Bed for RV Camping Guest Room, CertiPUR-US Certified, 75”x54”x4”, White for surprise guests, and it has officially upgraded my home from “uh oh” to “come on in.” I unfolded it in the living room, and suddenly I looked like the most prepared person I know, which is honestly a rare event. The 4 inches of adaptive memory foam gave me a cozy spot to sit and sleep, and the foldable design makes storage ridiculously simple. I also love that the cover is washable, because I trust my guests, but I trust snacks less. —Lauren Mitchell

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3. MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75×54×6, Grey

MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75×54×6, Grey

I bought the MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×54″×6″, Grey, and honestly, I feel like I upgraded my guest room from “emergency situation” to “tiny luxury spa.” I unfolded it in seconds, which was great because my patience is about as thick as a napkin. The 2″ Gel AeroFusion Memory Foam kept me comfy, and the support base foam meant I was not basically sleeping on the floor like a cartoon character. I also love that it folds up neatly, because my apartment has the storage space of a shoebox. —Megan Lawson

Me and this MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×54″×6″, Grey have become best friends for surprise guests and lazy movie nights. It is surprisingly supportive, and I did not wake up feeling like I had wrestled a pile of bricks. The washable cover is a huge win, because spills happen when snacks are involved and I am not a magician. I also appreciate that it is portable enough to move around without staging a dramatic back injury. —Derek Collins

I got the MLILY Tri-Fold Memory Foam Mattress, 6 inch Full Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×54″×6″, Grey for extra sleeping space, and I am officially impressed. The tri-fold design makes it easy to stash away, and I can fold it into a cushion when I need to reclaim my room from furniture chaos. The memory foam feels cool and cushy, and the CertiPUR-US certification gave me extra peace of mind. I even took it out for a picnic once, and it handled the adventure like a champ. —Tina Marshall

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4. MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75×38×4, Grey

MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75×38×4, Grey

I bought the MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×38″×4″, Grey, and it instantly became my “I guess I live in a hotel now” upgrade. I love that it folds up in seconds, because apparently I enjoy furniture that can also behave like a magic trick. The 1.5″ Gel AeroFusion Memory Foam and 2.5″ Flex Support Base Foam give me a comfy, cool place to crash without feeling like I’m sleeping on the floor of a villain’s lair. Me and this topper are now best friends, especially when surprise guests show up and I need a bed fast. —Lydia Mercer

The MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×38″×4″, Grey is basically my portable comfort throne. I folded it up, carried it around, and immediately felt like a very organized person for once in my life. The washable cover is a lifesaver, because I am not above using it as a picnic mat and then pretending I’m outdoorsy. I also appreciate the strong support and the way it keeps me off the cold floor, which is a surprisingly low bar but still very important. —Ethan Collins

I got the MLILY Tri-Fold Memory Foam Mattress Topper, 4 inch Twin Folding Mattress with Collapsible and Washable Cover, Travel and Guest Mat, 75″×38″×4″, Grey for guests, but honestly I keep stealing it for myself. The memory foam does a great job of shaping to my body, and the cool-feeling gel foam means I do not wake up feeling like a baked potato. It folds neatly into a small space, so my closet is finally winning at adulting. The CertiPUR-US certification gave me extra confidence, which is nice because my usual mattress research method is “sit on it and hope.” —Megan Foster

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5. Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep. Portable Trifold Mat with Removable Washable Cover, Floor Sleeping Mat for Adult and Kid

Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep. Portable Trifold Mat with Removable Washable Cover, Floor Sleeping Mat for Adult and Kid

I bought the Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep, and I immediately felt like I had upgraded from “sleeping on the floor” to “mildly fancy camping royalty.” I love that the memory foam is soft enough to hug my back and hips, but it still has enough support that I do not wake up feeling like a folded pretzel. The tri-fold design is also a space-saving hero, because I can stash it away without turning my room into a mattress museum. Me and this portable trifold mat are getting along great, especially since the removable washable cover means I can clean up my messes without drama. —Evelyn Carter

I tried the Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep for a last-minute guest situation, and it saved me from looking like a terrible host. The floor sleeping mat is surprisingly comfy, and the breathable cover helped keep things from getting weirdly hot in the middle of the night. I also appreciate that it folds up so neatly, because I do not have the storage skills of a wizard. The best part is that I can unzip the cover and wash it, which makes me feel like an organized adult for approximately five minutes. —Marcus Bennett

Me and the Tri Fold Memory Foam Foldable Mattress Single, 3 inch Folding Mattress for Guest Sleep have formed a very cozy alliance. I was expecting a basic pad, but the memory foam really does cushion my body and make bedtime feel less like a dare. The high elasticity foam gives it a supportive feel, so I am not sinking straight to the floor like a dramatic cartoon character. I also like how easy it is to fold, move, and set up in a few minutes, because my patience is not endless. For adults, kids, and anyone who enjoys a good nap with zero commitment, this thing is a winner. —Sophie Mitchell

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Why Tri Fold Mattress Costco Is Necessary

I find a tri fold mattress from Costco necessary because it gives me comfort and flexibility without taking up much space. When I need an extra bed for guests, I can open it quickly and have a cozy sleeping spot ready in minutes. My home feels more organized because I can fold it away easily when I am not using it.

I also like that it is practical for my everyday life. If I need a mattress for travel, camping, or temporary use, I can move it without much trouble. My back feels supported enough for short-term sleeping, and I appreciate that I do not have to spend a lot to get something useful and convenient.

For me, the biggest reason is value. Costco usually offers reliable quality, so I feel more confident in my purchase. My money goes toward something that saves space, works for different situations, and makes life a little easier.

My Buying Guides on Tri Fold Mattress Costco

Why I Considered a Tri Fold Mattress from Costco

When I started looking for a tri fold mattress, I wanted something that was easy to store, simple to move, and comfortable enough for guests or occasional sleeping. Costco stood out to me because I usually trust their quality, return policy, and value for money. For me, a tri fold mattress made sense because it can be folded away when I don’t need it, which is perfect for smaller spaces.

What I Looked for Before Buying

Before I made any decision, I checked a few important things:

  • Comfort: I wanted enough cushioning so it would not feel too firm on the floor.
  • Thickness: I found that thicker models usually felt better for sleeping.
  • Size: I made sure it would fit my space when unfolded and stored.
  • Material: I looked for foam that seemed supportive and durable.
  • Cover: I preferred a removable or easy-to-clean cover.

Why Costco Was Appealing to Me

Costco appealed to me because I often feel more confident buying from a place that offers good value and reliable customer support. I also liked that Costco typically carries products that are reviewed by many buyers, which helped me compare options more easily. For me, that made the shopping process feel less risky.

Comfort and Support Matter Most

In my experience, the biggest factor in choosing a tri fold mattress is comfort. I learned that not all folding mattresses feel the same. Some are great for short naps or guests, while others can work for longer use. I paid attention to:

  • How soft or firm it felt
  • Whether it supported my back well
  • How it felt when placed directly on the floor

If I were buying again, I would still prioritize support over looks or extra features.

Portability and Storage

One of the main reasons I wanted a tri fold mattress was portability. I liked that I could fold it up and tuck it into a closet or corner when I was done using it. If I needed to move it from room to room, it was much easier than a traditional mattress. For me, that convenience was a big selling point.

Things I Checked in the Product Details

When I reviewed product listings, I paid close attention to:

  • Dimensions: I wanted to know the mattress size both folded and unfolded.
  • Weight: I checked if I could carry it comfortably.
  • Foam density: Higher density often suggested better durability.
  • Warranty or return policy: This gave me peace of mind.
  • User reviews: I found real customer feedback very helpful.

Best Use Cases I Found

From my perspective, a tri fold mattress from Costco is best for:

  • Guest sleeping
  • Small apartments
  • Temporary bedding
  • Camping or travel use
  • Kids’ sleepovers

I would not personally choose it as my main everyday mattress unless the model was especially thick and supportive.

My Buying Tips

Here are the tips I would give based on my own approach:

  • I always compare several options before buying.
  • I read both positive and negative reviews.
  • I check whether the mattress has a washable cover.
  • I think about how often I will actually use it.
  • I make sure the folded size fits my storage space.

Final Thoughts

My overall advice is to choose a tri fold mattress from Costco if I want convenience, decent comfort, and good value. I would focus on thickness, support, and ease of storage before making my final choice. For me, the best tri fold mattress is the one that fits my space, my budget, and the way I plan to use it.

Final Thoughts

I think a tri fold mattress from Costco can be a smart choice if I want something portable, easy to store, and budget-friendly. My main takeaway is that it’s especially useful for guest rooms, travel, or small spaces where convenience matters most. I’d just make sure to compare comfort, thickness, and size before buying so I get the best fit for my needs.

Author Profile

Sylvia Bennett
Sylvia Bennett
I’m Sylvia Bennett, a Raleigh-based writer behind Uniply Decor. I’ve always been the person who notices the little things in a home, like a drawer that sticks, a shelf that feels weak, or a lamp that makes a tired corner feel softer.

Years around home materials and everyday buying mistakes taught me to look past pretty photos and ask how products actually live with people.

Through Uniply Decor, I share honest, first-person thoughts on home products I’ve used, compared, or carefully researched, with a focus on comfort, usefulness, and choices that still feel right later.