The Problem With Stock RV Bunk Mattresses
Stock RV bunk mattresses are some of the worst mattress constructions I see at my recycling facility. Most of them aren't really mattresses at all — just a single piece of low-density foam with a cover on it.
For kids sleeping on them occasionally during camping trips, that's fine. But under any real weight or regular use, they sag, break down, and provide almost no support.
The thing is, thin mattresses can be built well. Most manufacturers just don't bother because they assume nobody expects quality from a bunk mattress. I worked at my dad's mattress factory before starting the recycling company, and I built plenty of thin mattresses. It's not complicated to do it right. You need a high-density support foam base — at least 4 inches — and then a comfort layer on top that's softer. That comfort layer can be memory foam, poly foam, or latex.
The problem is most RV manufacturers skip proper layering. They use one slab of medium-density foam and call it a day. That doesn't work. You won't get proper support or comfort.
The good news: there are manufacturers who actually know how to build thin mattresses, and they'll drastically upgrade sleep quality in your RV bunks.
What I Look for in a Quality RV Bunk Mattress
After tearing apart thousands of RV mattresses at my facility, I know what separates the ones that last from the ones that end up back at my door in 18 months. Here's what I check for with bunk mattresses specifically — bunks have constraints regular mattresses don't. The retailers below carry stuff that meets these standards. For the full breakdown on mattress materials, see my guide.
1. Proper Layered Construction (Even at 6 Inches)
This is the #1 thing I look for. A quality thin mattress still has distinct layers: a high-density support base (at least 1.8 lb/ft³ foam) and a separate comfort layer on top. Single-slab construction — one piece of medium foam — is what I see in every failed bunk mattress. It doesn't matter if it's 6 inches or 10 inches thick; without proper layering, it'll sag.
2. Thickness That Fits Your Clearance
RV bunks have guardrails and overhead cabinets. Before you buy anything, measure from the bunk platform to the ceiling above it, and from the platform to the top of the guardrail. Your mattress needs to fit with room for a pillow and for someone to sit up. Most people can use 6-8 inches; upper bunks with tight clearance may need 6 inches max.
3. Durability for Frequent Use
RV bunks get used hard — whether it's kids jumping on them or adults sleeping every night on the road. Higher-density foams hold up better to this use. Look for base foam density of 1.8 lb/ft³ minimum — I explain why in my guide on why mattresses fail. Anything less and you'll see body impressions within a year.
4. No Fiberglass Fire Barrier
Budget RV mattresses often use fiberglass fire barriers to cut costs. In an RV with kids, this is a disaster waiting to happen. Covers get unzipped, fiberglass escapes, and now your whole RV interior is contaminated. I only recommend mattresses verified to use non-fiberglass fire barriers.
How I Actually Know This Stuff
I tear mattresses open at my facility — that's how I know what's inside. I've done full teardowns on the Brooklyn Bedding products (Dreamfoam Essential, Signature Hybrid, Sedona). For the other retailers, I'm going off manufacturer specs and reputation. See my teardowns if you want the proof.
Dreamfoam Essential
The most flexible option I've found — available in virtually any size and thickness you need.
Not the only option, but if you want something that works and don't want to overthink it — this is a solid choice.
How It Meets My Criteria:
- ✓ Proper layered construction — In teardown: gel memory foam comfort layer over high-density 1.8+ lb/ft³ support base. Two distinct layers, not single-slab.
- ✓ Thickness options for any clearance — Available from 6" to 14". The 6" version fits tight upper bunks while still having proper construction.
- ✓ Durable for frequent use — High-density base foam handles heavy use without developing body impressions. I've seen these hold up for years.
- ✓ No fiberglass — Verified in teardown: rayon-based fire barrier, no fiberglass content.
I've torn this mattress apart in my facility and verified every claim above. The construction is solid — exactly what a thin mattress should be.
Common RV Bunk Sizes
Unlike standard mattress sizes, RV bunks have no industry standard. Every manufacturer does their own thing, which is why you need to measure your actual bunk platform before ordering anything.
| Size | Width × Length | Where You'll Find It |
|---|---|---|
| 28" × 75" | Narrowest common size | Multi-bunk family RVs, maximizing sleeping capacity |
| 30" × 75" | Most common RV bunk | Standard travel trailer bunks (also called narrow twin or cot size) |
| 30" × 80" | Extended length | Taller sleepers, some newer RVs |
| 34" × 75" | Wider bunk | Two-bunk configurations with more space |
| 35" × 79" | Truck mattress size | Semi-trucks, larger RV bunks |
| 42" × 80" | Large bunk | Dinette conversions, premium bunk setups |
When I pick up RV mattresses, I see all of these sizes and plenty of oddball dimensions in between. Class B motorhomes often use weird sizes like 28×72 or 28×76. Pop-up camper dinettes can be anything from 34×64 to 50×80.
The rule: measure your platform, not your old mattress. Your old mattress may have compressed or been the wrong size to begin with. Measure the actual sleeping surface.
Where to Buy an RV Bunk Mattress Online
Online is where you'll find the best selection for RV bunk mattresses. These retailers specialize in custom sizes and thin-profile mattresses — they understand that bunk mattresses need proper construction even at 6 inches thick.
RVMattress.com by Brooklyn Bedding
4 Mattresses Available in RV Bunk Sizes (28×75 to 42×80)
Brooklyn Bedding manufactures their own mattresses in Phoenix, Arizona. They've been making mattresses since 1995 and own their factory — the kind of manufacturer that actually knows how to build thin mattresses with proper layered construction.
In my opinion, this is the best quality for your money for RV bunk mattresses — specifically because they have their own in-house factory and offer thin profiles (6"+) with proper construction. I've personally tested multiple Brooklyn Bedding mattresses (see my teardown page) and consistently find solid construction and quality materials.
MattressInsider.com
Mattress Insider has been making custom-size mattresses in Colorado since 2008. They specialize in RV, truck, boat, and odd-size mattresses — including thin-profile bunks that most retailers don't stock.
Bunk sizes: Any custom dimension you need
For bunks specifically, their Sedona (5.5" thick, from $259) and Elation (6" thick, flippable, from $309) are designed for thin-profile applications. The Sedona is the thinnest quality option I've found if you have severe clearance restrictions. They also offer the Luxury (8" or 11.5") and Scarsdale Hybrid (9") for bunks with more headroom. All models available with corner cuts, radius corners, and hinged construction.
Wilderness RV Mattress
A family-owned company out of Florida that focuses specifically on RV mattresses. They have a dedicated bunk mattress — the Dream Bunk.
Dream Bunk — 6" thick, $300.09 (currently 30% off). Available in any bunk size from 28-38" wide. All bunk sizes priced the same, which is nice. Uses CertiPUR-US certified foam with proper layered construction. Custom shapes and corner cuts available through their online builder.
They also offer the Canyon (from $369), Aspen (from $523), and Montana Hybrid (from $699) in bunk dimensions if you have clearance for thicker mattresses.
Tochta
Tochta is based in Southern California and specializes in custom RV and truck mattresses. What sets them apart for bunk buyers is their online mattress builder — you can enter exact dimensions from 20-80" wide and 40-90" long, in thicknesses from 4 to 10 inches, and get an instant price without calling anyone.
For bunks, the Journey (3-layer gel memory foam, around $280-320 for a 30×75) is available in thin profiles. The Utopia (4-layer with latex transition, around $380-420 for a 30×75) is their most popular. Their custom shape builder handles angle cuts, radius corners, and notches — common for bunks that fit around walls or posts.
Custom Mattress Factory
A North Carolina manufacturer that makes handcrafted mattresses. They're transparent about custom pricing — corner cuts are $25 each, hinges are $150 extra. Good option if your bunk needs unusual modifications.
Bunk options: Levi (entry-level foam, from $285), Grayson (cooling gel memory foam), Kinsley (latex and memory foam combination). Ships in 4-7 business days.
SleepDog Mattress
An RV-focused brand that offers mattresses specifically designed for the RV environment. They emphasize temperature regulation and durability for the conditions RVs experience — useful for bunks that see temperature swings.
Amazon
Amazon has RV bunk options, but quality varies significantly. A few I'd consider for bunks:
- RecPro 6" Gel Memory Foam — $189.95 for a 30×75. Made in America, washable bamboo cover. RecPro is an actual RV-focused brand. Note: they don't accept returns.
- Zinus 5" Memory Foam — $99-130 for a 30×75. Cheapest option from a recognizable brand. CertiPUR-US certified, fiberglass-free. Fine for kids or occasional use.
- FoamRush — Custom sizes at $100-150 for 6" models. Ships without covers. 50% restocking fee on returns.
Be careful on Amazon: Many listings use confusing size names or don't clearly specify dimensions. Always verify exact measurements in the product specifications before ordering.
Where to Buy In-Store
Finding RV bunk mattresses in physical stores is harder than finding standard sizes, but you have some options.
Camping World
With over 200 locations, Camping World offers the best chance to see RV bunk mattresses in person. They carry their proprietary Cozyway brand in bunk sizes, including options with pre-cut corner angles.
Bunk options: Cozyway in 4", 8", and 10" thicknesses. Prices range $199-400. Some models come with corner cuts already done.
Important: All Camping World mattresses are non-returnable — frustrating when you can't test the exact mattress you're buying, but it's their policy for custom-size items.
Find locations: campingworld.com
Denver Mattress (Furniture Row)
Denver Mattress manufactures RV mattresses to order at their Colorado factory, including bunk sizes. You can test standard mattresses in the showroom to get a sense of firmness, then order your specific bunk dimensions.
Rest Easy Plush Bunk (30×72×5") — Around $330.
90+ locations across 30 states. Find locations →
Local Mattress Factories
Many regions have local mattress factories that can make custom bunk sizes. Search "[your city] custom mattress factory" and ask about thin-profile RV mattresses. Local factories can match firmness preferences, do corner cuts, and let you feel materials before ordering. Two chains worth checking: Verlo Mattress and Original Mattress Factory.
Why Thickness Matters More With Bunk Mattresses
RV bunk mattresses need to be thin — usually 6 to 8 inches max — and this is where I see people make the most mistakes.
The most common error is ordering too thick. A 10-inch mattress might sound great, but if it doesn't sit below your bunk rails, that's a safety hazard. Kids can roll right off. And if your bunk is in a slide-out section or needs to collapse under a cabinet or table, a mattress that's too thick won't work.
The second mistake is buying "upgraded" mattresses from RV supply companies and expecting them to be dramatically better. They're slightly more comfortable than stock, but they still use budget materials and will break down quickly under regular use.
This is why I recommend buying from an actual mattress manufacturer — a company that knows how to build mattresses properly. This matters even more with thin mattresses. Get it wrong and either you won't have enough support (you'll feel the platform through it) or you won't have enough comfort (it'll feel like sleeping on a board).
A quality 6-inch mattress needs proper layering — high-density foam on the bottom for support, softer foam on top for comfort. Most cheap bunk mattresses use one uniform slab of foam instead. That's why they fail. For a deeper dive into what thickness actually means for different sleepers, see my complete mattress thickness guide.
The thinnest I'd recommend is 6 inches for quality comfort. You can go thinner for lighter kids, but for adults, 6 inches is the minimum if you want a mattress that's actually built right.
Custom Corners and Shapes
Many RV bunks aren't simple rectangles. Depending on your rig's layout, you might need corner cuts, radius curves, or notches to fit around posts and walls.
Who handles custom bunk shapes:
| Retailer | Corner Cut Pricing | Notes |
|---|---|---|
| Custom Mattress Factory | $25 per corner | Most transparent pricing |
| Tochta | Included in online builder | Instant pricing, no phone calls |
| MattressInsider | Varies | Complex shapes may require phone consultation |
| Wilderness RV Mattress | Included | Online builder handles standard cuts |
A Warning About Custom Orders
Custom-cut mattresses are almost always non-returnable. Once they cut corners or make a non-standard shape, they can't sell it to anyone else.
I see brand-new custom bunk mattresses come through my facility from people who measured wrong. Common mistakes:
- Measuring the old compressed mattress instead of the platform
- Getting corner dimensions wrong
- Not accounting for guardrail clearance with thicker mattresses
- Not checking if the mattress needs to fold or slide under something
Measure twice. Then measure again. For bunks with corner cuts, make a cardboard template before ordering. Worth the extra hour to avoid a $300 mistake you can't return.
What to Look For in an RV Bunk Mattress
Based on what I see at my recycling facility and from building mattresses, here's what actually matters:
Proper Layer Construction
This is the big one. A quality thin mattress needs:
- High-density support foam base — At least 4 inches of 1.8+ lb/ft³ density foam
- Comfort layer on top — Memory foam, poly foam, or latex that's softer and provides cushioning
One slab of uniform foam = bad. Layered construction = good.
When manufacturers skip proper layering to save money, you get mattresses that either bottom out (you feel the platform) or feel like sleeping on a board (no comfort layer). This is why stock RV bunks are terrible and why buying from actual mattress manufacturers matters.
Appropriate Thickness for Your Space
- 5-5.5 inches — Only for bunks with severe clearance restrictions or for children
- 6 inches — Minimum I'd recommend for adults. This can be done well with proper construction
- 8 inches — More comfortable for regular adult use if you have the clearance
- 10+ inches — Only if your bunk has significant guardrail height and overhead clearance
Weight Capacity
Standard 6-inch foam mattresses support about 200-250 pounds per sleeper. For heavier adults, consider 8-inch thickness or hybrid construction. The bunk frame itself may also have weight limits — check your RV documentation.
Temperature Performance
Memory foam gets firm in the cold. Like, really firm. If you camp in varying temperatures, latex or innerspring maintains more consistent feel. Memory foam can take hours of body heat to soften up on cold nights. For a deeper comparison, see my memory foam vs latex guide.
Bunk-Specific Considerations
Ventilation and Moisture
RV bunks on solid platforms trap moisture between the mattress and surface. This creates mold — I've seen it destroy mattresses within months in humid climates.
Solutions:
- Hypervent Aire-Flow moisture barrier — Woven polymer mesh that creates airflow space. Around $90 for larger sizes, less for bunks.
- Slatted bunk platforms — If you're handy, replacing a solid platform with slats helps significantly.
Waterproof Protection
Bunk mattresses take more abuse than master bedroom mattresses — especially with kids. Spills, accidents, humidity from condensation. A waterproof protector extends mattress life significantly.
AB Lifestyles makes Keep-A-Bed waterproof covers in specific bunk sizes (28×75, 30×75, 34×75).
Price Breakdown by Tier
Budget: Under $200
Functional foam mattresses for occasional use or kids.
- Zinus 5" Memory Foam — $99-130
- RecPro 6" Gel Memory Foam — $189.95
- FoamRush custom sizes — $100-150
These will work for 3-5 years of occasional use. Don't expect them to hold up under regular adult use.
Mid-Range: $200-400
Quality construction with proper layering and warranties.
- Dreamfoam Essential 6" — $192 on sale
- MattressInsider Sedona 5.5" — $259
- Wilderness RV Dream Bunk 6" — $300
- MattressInsider Elation 6" — $309
These should last 7-10 years with proper care. This is where I'd point most people.
Premium: $400+
Natural materials, hybrid construction, maximum durability.
- Turmerry Organic Latex 6" — $699 on sale
- MattressInsider Scarsdale Hybrid 9" — $609+
Worth it for full-time RV living or adults prioritizing comfort. Latex especially — I see these last 15-20 years.
What to Do With Your Old Bunk Mattress
When your new bunk mattress arrives, you need to dispose of the old one. RV mattresses in odd sizes are harder to get rid of than standard sizes — most donation centers won't take them.
Need Your Old Mattress Removed?
Getting rid of an RV bunk mattress can be tricky. I've put together a complete guide to your disposal and recycling options.
See Your Options →Frequently Asked Questions
What size is a standard RV bunk mattress?
There's no true standard, but 30×75 inches is the most common. Always measure your actual bunk platform — don't assume.
How thick should an RV bunk mattress be?
6-8 inches for most applications. Make sure the mattress sits below your guardrails (safety issue) and fits within any slide-out or storage configurations. I wouldn't go thinner than 6 inches for adults if you want any real comfort.
Why are RV bunk mattresses so uncomfortable?
Most manufacturers just use one slab of cheap foam. A quality thin mattress needs a high-density support base plus a softer comfort layer on top. Stock RV bunks skip this to save money.
Can adults sleep on RV bunk mattresses?
Yes, with a quality mattress. Look for 6-8 inch thickness from an actual mattress manufacturer, not an "upgraded" RV supply company mattress. Proper construction makes all the difference.
Should I buy from an RV supply company or a mattress company?
Mattress company. RV supply companies sell "upgraded" bunk mattresses that are slightly better than stock but still use budget materials. Actual mattress manufacturers know how to build thin mattresses with proper construction.
About This Guide
