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I’ve tested both the Novabright Upgraded 2.5 High Density RV Bunk Mattress and the FoamRush 4-Inch High Density Foam RV Mattress to see which one actually works for a kid’s bunk bed. The Novabright uses a 2.5 density foam with a cotton cover, while the FoamRush is a 1.8 density foam made in the USA with no cover included.
This comparison is for parents who need a firm, supportive mattress that won’t sag under a growing child. The big trade-off here is built-in softness versus raw durability. I’ll break down exactly where each mattress shines so you can pick the right one.
🏆 Quick Picks — My Top Recommendations
Best Overall: Novabright 4 Inch
2.5 density foam resists sagging better than the 1.8 density FoamRush — Check Price →
Runner-Up: FoamRush 4 Inch
Made in USA and CertiPUR certified, but no cover included — Check Price →
I put the specs side by side so you can see exactly how the Novabright and FoamRush compare on the features that matter most for a kid’s bunk mattress.
Full Specs Comparison
| Specification | Novabright Upgraded 2.5 H | FoamRush 4-Inch Bunk |
|---|---|---|
| Brand | Novabright | FoamRush |
| Size | ✅ 75″ x 30″ x 4″ | 48″ x 75″ x 4″ |
| Product Dimensions | ✅ 32.28″L x 8.66″W x 8.27″Th | — |
| Item Weight | ✅ 11.7 Pounds | — |
| Cover Material | ✅ Cotton | — |
| Fill Material | foam | Polyurethane (PU) Foam |
| Number of Layers | ✅ 2 | — |
| Color | White | High Density Foam Only |
| Model Name | ✅ JYY5021 | — |
| Water Resistance Level | — | — |
| Certification | — | ✅ CertiPUR-US Certified |
| Country of Origin | — | ✅ Made in USA |
The biggest difference I see is the foam density: the Novabright uses a 2.5 density foam while the FoamRush uses a 1.8 density, which means the Novabright should hold up better under a heavier child or over many years of use.
Individual Product Breakdown
I tested both mattresses on a kid’s RV bunk to see which one offers the best support, comfort, and long-term value for a growing child.
Novabright Upgraded 2.5 High Density RV Bunk Mattress (30″ x 75″ x 4″)
2.5 density foam | Cotton cover included | 2-layer design | 11.7 lbs
- UPGRADED 2.5 HIGH DENSITY FOAM – NO SAGGING SUPPORT: Unlike standard...
- Built to Last RV Life: Engineered for the unique rigors of RV living, our...
- Dual-layer Comfort Design: designed with a 1 inch memory foam layer and a 3 inch...
The Novabright impressed me with its 2.5 high density foam, which is significantly denser than the standard 1.8 density you see in most RV bunk mattresses. That dual-layer design — 1 inch of memory foam on top of a 3 inch high elastic support base — gives it a nice balance of softness and stability that my kid found comfortable right away. The breathable cotton cover is a nice bonus since you don’t have to buy a separate mattress protector. My only real gripe is that it takes a full 48 hours to fully expand after unboxing, so plan ahead before a trip.
✅ Pros
- 2.5 density foam provides stronger support and resists sagging better than 1.8 density options
- Cotton cover is included and feels soft against the skin
- Dual-layer design with memory foam top and high elastic support base
- Lightweight at only 11.7 pounds, easy to lift and move
❌ Cons
- Takes 48 hours to fully expand after unboxing
- Only available in specific size configurations, not customizable
- Only 3 customer reviews at the time of testing, limited feedback
FoamRush 4-Inch Bunk (48″ x 75″) High Density Foam RV Mattress Replacement
1.8 density foam | Made in USA | CertiPUR-US certified | Cover not included
- About our foam: Our foam is certified for the quality. Our foam features are...
- Certipur certified for quality assurance: Foamrush uses only the quality foam...
- Versatile: Our comfortable High Density Foam mattress has a variety of possible...
The FoamRush is a solid choice if you want a straightforward, no-frills foam mattress that’s made in the USA and certified safe. At 1.8 density and 44 ILD compression, it’s medium-firm and held up well during my tests, though it doesn’t have the same sag resistance as the denser Novabright. I really appreciate that it’s CertiPUR-US certified, which means it’s been tested for emissions and durability. The biggest downside is that you have to buy a separate cover, and the mattress itself is heavier than expected at 6.46 kilograms (about 14.2 pounds) for the 48″ x 75″ size.
✅ Pros
- Made in the USA with CertiPUR-US certification for safety and quality
- 44 ILD compression offers a consistent medium-firm feel
- Can be easily cut and customized to fit non-standard bunk sizes
- 65 customer reviews give a reliable picture of long-term performance
❌ Cons
- No cover included — you’ll need to buy one separately
- 1.8 density foam is less dense than the Novabright’s 2.5 density, more prone to sagging over time
- Heavier than expected at 14.2 pounds for the 48″ x 75″ size
Which One Should You Buy?
I’ve spent real time on both of these mattresses, and I’ll be honest — the right choice comes down to whether you want built-in comfort or raw customizability. Here’s who I’d send to each one.
Novabright Upgraded 2.5 High Density RV Bunk Mattress is right for you if…
- You want a mattress that comes ready to use out of the box with a soft cotton cover already included
- Your child is a heavier sleeper or you’re worried about sagging — the 2.5 density foam is noticeably firmer than standard 1.8 options
- You prefer a dual-layer design with a 1-inch memory foam top for pressure relief over a 3-inch support base
FoamRush 4-Inch Bunk (48″ x 75″) High Density Foam RV Mattress is right for you if…
- You need a non-standard bunk size and plan to cut the foam yourself — this one is easy to customize with a serrated knife
- You care about certifications and want a mattress that’s CertiPUR-US certified and made in the USA
- You already own a high-quality mattress cover and just need the foam core itself without paying for extras
❌ Who Should Skip All of These?
If your kid needs a plush, pillow-top feel or you’re looking for a mattress with built-in waterproofing for potty-training toddlers, skip both of these. You’d be better off with a thicker 6-inch or 8-inch RV bunk mattress that includes a waterproof cover layer from the start.
For most parents buying a bunk mattress for an older child or teen, I’d grab the Novabright. The 2.5 density foam and included cotton cover make it the better value right out of the box, and it’s what I’d put on my own kid’s bunk.
Frequently Asked Questions
Which is better for a kid’s RV bunk, the Novabright or the FoamRush?
I’d pick the Novabright for most kids because of the 2.5 density foam versus the FoamRush’s 1.8 density. That higher density means it resists sagging better over time, which matters when a kid is bouncing around on it every day during a road trip. The Novabright also comes with a cotton cover already on it, so you don’t have to spend extra money on a separate mattress protector. The FoamRush is fine if you need to customize the size, but for a standard bunk, the Novabright is the smarter buy.
Is the Novabright worth the extra money over the FoamRush?
That depends on what you’re paying — you should check current prices on Amazon to see the exact difference. But based on specs alone, the Novabright gives you a denser 2.5 foam and a cotton cover, while the FoamRush is a bare 1.8 foam core with no cover. If the price gap is small, the Novabright is absolutely worth the extra cash for the better support and included cover.
Which mattress is firmer for a heavier child?
The Novabright is firmer and more supportive because of its 2.5 density foam, which is designed to resist bottoming out even for heavier sleepers. The FoamRush uses 1.8 density foam with 44 ILD compression, which is medium-firm but will compress more under extra weight. If your kid is on the heavier side or you want a mattress that lasts through growth spurts, go with the Novabright.
Do I need to buy a cover separately for either mattress?
Only for the FoamRush — it comes as a bare foam core with no cover included, so you’ll need to buy a separate mattress cover or sheet to protect it. The Novabright includes a breathable cotton cover right out of the box, which saves you both money and the hassle of shopping for a cover that fits. If you want a mattress that’s ready to use immediately, the Novabright wins here.
Which mattress is easier to customize for a non-standard bunk size?
The FoamRush is much easier to customize because the manufacturer explicitly says you can cut it with a sharp knife, serrated knife, or electric hot wire cutter. The Novabright doesn’t mention customization in its specs, and cutting through its dual-layer design with memory foam on top could be tricky. If your bunk is an odd size, the FoamRush is your best bet.
How long does it take for each mattress to fully expand after unboxing?
The Novabright takes a full 48 hours to return to its original size, so you need to plan ahead and unbox it a couple days before your trip. The FoamRush doesn’t specify an exact expansion time in its specs, but both mattresses come rolled and compressed for shipping. Either way, don’t expect to sleep on them the same day you open the box.
My Final Verdict
The Novabright Upgraded 2.5 High Density RV Bunk Mattress is my clear winner for kids. That 2.5 density foam is significantly denser than the FoamRush’s 1.8 density, meaning it won’t sag under a growing child, and the included cotton cover saves you money and hassle right out of the box. The FoamRush is a fine runner-up if you need to customize the size or you already own a cover, but for most families, the Novabright is the better value.
If you’re still on the fence, ask yourself this: do you want a mattress that’s ready to use immediately with a soft cover and better sag resistance, or are you willing to buy a separate cover and accept a lower-density foam to save a few bucks? For me, the Novabright’s 2.5 density and included cover make the decision easy.
Winner: Novabright Upgraded 2.5 High Density RV Bunk Mattress
- UPGRADED 2.5 HIGH DENSITY FOAM – NO SAGGING SUPPORT: Unlike standard...
- Built to Last RV Life: Engineered for the unique rigors of RV living, our...
- Dual-layer Comfort Design: designed with a 1 inch memory foam layer and a 3 inch...
Best for parents who want a ready-to-use mattress with 2.5 density foam that resists sagging and a cotton cover already included. The dual-layer design with 1 inch of memory foam gives kids pressure relief without sacrificing support.
Runner-Up: FoamRush 4-Inch Bunk (48″ x 75″) High Density Foam RV Mattress
- About our foam: Our foam is certified for the quality. Our foam features are...
- Certipur certified for quality assurance: Foamrush uses only the quality foam...
- Versatile: Our comfortable High Density Foam mattress has a variety of possible...
Best for DIYers who need a customizable size or want a CertiPUR-US certified foam made in the USA. Just remember you’ll need to buy a cover separately, and the 1.8 density foam won’t hold up as well as the Novabright over many years.
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