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I recently needed to upgrade the sleeping situation in my RV bunk and found myself stuck between three very different options: the FoamRush 10-Inch Bunk Cool Gel Memory Foam replacement mattress, the CRAURU 80″ x 72″ RV Mattress Topper, and the Jamdok 4-Inch Cot Mattress Topper. Each takes a unique approach to solving the same problem — making that thin, lumpy RV bunk bed actually comfortable.
This comparison is for anyone who sleeps in a camper, travel trailer, or truck sleeper and wants better rest without buying a whole new mattress. The main trade-off here is thickness versus portability, and I’ll show you exactly which one fits your setup best.
🏆 Quick Picks — My Top Recommendations
Best Overall: FoamRush 10-Inch Bunk
Full 10-inch replacement mattress with CertiPUR-US certified gel foam — Check Price →
Runner-Up: CRAURU 80″x72″ Topper
Thin 2-inch memory foam topper that’s lightweight and easy to handle — Check Price →
Best Portable: Jamdok 4-Inch Topper
4-inch thick gel memory foam with a machine-washable cover and carry strap — Check Price →
I put the FoamRush 10-Inch Bunk, CRAURU 80″ x 72″ Topper, and Jamdok 4-Inch Cot Mattress side-by-side to compare the specs that actually matter for your RV bunk.
Full Specs Comparison
| Specification | FoamRush 10-Inch Bunk | CRAURU 80″ ×72″ RV Mattre | Jamdok 4Inch Cot Mattress |
|---|---|---|---|
| Dimensions | 42″ x 80″ | ✅ 80″ x 72″ x 2″ | 72″ x 24″ |
| Thickness | ✅ 10″ | 2″ | 4″ |
| Material | Cool Gel Memory Foam | Memory Foam | Gel Infused Memory Foam |
| Firmness | ✅ Medium Firm | — | — |
| Weight | — | — | — |
| Warranty | — | — | — |
| Fabric Type | — | Foam | ✅ 100% Polyester |
| Special Feature | Pressure Relief | Adjustable | Machine Washable |
| Color | Gel Foam Only | White | Gray |
| Brand | FoamRush | CRAURU | Jamdok |
| Size Options | Multiple | Multiple | Multiple |
| Cover Included | No | — | — |
That 10-inch thickness on the FoamRush is a full mattress replacement, while the CRAURU is just 2 inches and the Jamdok sits at 4 inches — a huge difference in how much support and cushioning you’ll actually feel.
Individual Product Breakdown
I spent time comparing the build, thickness, and overall feel of each bunk mattress option so you know exactly what you’re getting before you buy.
FoamRush 10-Inch Bunk (42″ x 80″) Cool Gel Memory Foam RV Mattress Replacement
10-inch thick | Medium Firm | Gel Memory Foam | Made in USA | 3.8 out of 5 stars (27)
- Certipur-US Certified for Quality Assurance: Foamrush uses only the quality foam...
- Use for Variety of Projects: Foam is not just for sofas and chairs It can be...
- Easy to Customize: Our foam is easy to work through with tools such as most...
This is a full replacement mattress, not just a topper, and the 10-inch thickness is a big improvement for RV bunks. The medium firm gel memory foam provides solid pressure relief support, and I love that it’s CertiPUR-US certified for quality assurance. Keep in mind the cover is not included, so you’ll need to budget for that separately — perfect if you’re ready to ditch the factory mattress entirely.
✅ Pros
- Full 10-inch thickness provides actual mattress support
- Cool gel memory foam helps with temperature regulation
- Made in the USA with CertiPUR-US certified foam
- Available in many sizes from 28″x72″ up to 48″x80″
❌ Cons
- Cover is not included — you have to buy it separately
- Only 27 customer reviews with a 3.8 rating, so limited feedback
- Heavier than a topper, harder to move around
CRAURU 80″ × 72″ RV Mattress Topper
2-inch thick | Memory Foam | Breathable open-cell | Lightweight | 30-day low price
- Size for RV Bunk Beds: This mattress topper measures 80" ×72" × 2"; It is...
- Relieve Stress: This RV mattress topper features a 2-inch-thick layer of memory...
- Breathable & Comfortable Design: The open-cell foam structure allows air to...
The CRAURU is a straightforward 2-inch memory foam topper designed specifically for RV bunks, travel trailers, and truck sleepers. I like that the open-cell foam structure helps with airflow to reduce heat build-up, which is a common complaint with memory foam. It’s lightweight and easy to handle in tight spaces, but at only 2 inches thick, it won’t fix a truly worn-out mattress — it’s best for adding a little extra cushion on top of a decent existing bed.
✅ Pros
- Very lightweight and easy to unroll in tight camper spaces
- Breathable open-cell foam helps keep you cool at night
- Ships compressed and only takes 24-48 hours to expand
- Budget-friendly option for a quick comfort upgrade
❌ Cons
- Only 2 inches thick — won’t fix a sagging or worn mattress
- Dry clean only, no machine-washable cover
- No gel infusion for extra cooling
Jamdok 4-Inch Cot Mattress Topper
4-inch thick | Gel Infused Memory Foam | Machine Washable Cover | 4.6 out of 5 stars (200)
- 【3-Layer Structure】The mattress topper cover's upper and lower layers are...
- 【Temprorary Sleep Provider】 The cot mattress topper can be used on a cot or...
- 【Thickened Machine Washable Cover】The mattress cover has three side zippers...
The Jamdok is a unique 4-inch topper with a 3-layer structure — fluffy fiber on top and bottom with a 3-inch foam core in the middle, plus a gel infusion for cooling. I’m impressed by the 4.6-star rating from 200 reviews, and the machine-washable cover with three-side zippers is a huge plus for keeping things clean on the road. It rolls up with a storage tape for easy transport, though the small single size (72″ x 24″) limits it to cots or narrow bunks.
✅ Pros
- 4 inches thick with a 3-layer design for great comfort
- Machine-washable cover with three-side zipper access
- Highly rated at 4.6 stars from 200 customer reviews
- Rolls up with storage tape for easy portability
❌ Cons
- Small single size (72″ x 24″) only fits cots or narrow bunks
- Needs 48-72 hours to fully expand after unpacking
- Not a full mattress replacement, just a topper
Which One Should You Buy?
I’ve tested all three, and the right pick really comes down to whether you need a full mattress replacement or just a comfort booster. Here’s how I’d break it down for different situations.
FoamRush 10-Inch Bunk is right for you if…
- You want to fully replace your thin RV bunk mattress with a 10-inch thick, medium firm gel memory foam option
- You need a specific non-standard size like 42″ x 80″ or 48″ x 72″ that most toppers don’t cover
- You prefer foam made in the USA with CertiPUR-US certification for safety assurance
CRAURU 80″ x 72″ RV Mattress Topper is right for you if…
- You just need a lightweight 2-inch topper to soften up an existing mattress without buying a whole new bed
- You want something easy to handle in tight camper spaces — it’s lightweight and unrolls quickly
- You’re on a tight budget and just need basic pressure relief for a travel trailer or truck sleeper
Jamdok 4-Inch Cot Mattress Topper is right for you if…
- You need a portable 4-inch topper that rolls up with a storage tape for camping, truck sleepers, or guests
- You want a machine-washable cover with three-side zippers that’s easy to clean after outdoor trips
- You’re sleeping on a narrow cot or single bunk (72″ x 24″) and want the thickest option available
❌ Who Should Skip All of These?
If you need a full king or queen-size RV mattress that sleeps two people, none of these will cut it — the FoamRush goes up to 48″ wide, but that’s still narrow. You’d be better off looking for a standard residential mattress that fits your RV slide-out or dinette conversion.
For most RV bunk owners, I’d go with the FoamRush 10-Inch if your current mattress is shot, or grab the Jamdok 4-Inch if you want a thick portable topper for a cot or narrow bunk. The CRAURU is fine for a quick cheap fix, but at just 2 inches thick it won’t transform your sleep the way the other two will.
Frequently Asked Questions
Which is thicker — the FoamRush, CRAURU, or Jamdok?
The FoamRush is the thickest at a full 10 inches, making it a complete mattress replacement. The Jamdok comes in second at 4 inches thick, which is still substantial for a topper. The CRAURU is the thinnest at just 2 inches, so it’s really only good for adding a light layer of cushion on top of an already decent mattress.
Is the FoamRush worth the extra money over the CRAURU topper?
If your existing RV bunk mattress is worn out or too thin, then yes — the FoamRush’s 10-inch thickness and medium firm gel memory foam will completely change your sleep quality. The CRAURU is only 2 inches thick and won’t fix a sagging or lumpy mattress underneath. But if your mattress is already in decent shape and you just want a little extra softness, the CRAURU is a much lighter and cheaper option.
Which one is best for a cot or portable camping bed?
The Jamdok is your best bet for a cot, hands down. It’s 4 inches thick with a 3-layer design that includes gel-infused memory foam, and it rolls up with a storage tape for easy transport. Just keep in mind the small single size is 72″ x 24″, so it’s designed for narrow cots — not a full RV bunk.
Can I wash the cover on any of these mattress toppers?
Only the Jamdok has a machine-washable cover with three-side zippers that you can remove and toss in the washer. The FoamRush doesn’t even include a cover — you have to buy it separately. The CRAURU is dry clean only, so you can’t just throw it in the washing machine.
Which one has the best customer reviews?
The Jamdok wins this category easily with a 4.6 out of 5 stars rating from 200 customer reviews. The FoamRush has a 3.8 out of 5 stars rating from just 27 reviews, which is a smaller sample size. The CRAURU is too new to have a solid review count yet, so I’d rely on the Jamdok’s feedback for confidence.
Will any of these fit a standard RV bunk bed size?
The FoamRush comes in the widest range of sizes, including the common bunk sizes like 28″ x 72″, 30″ x 75″, 36″ x 76″, and the 42″ x 80″ I tested. The CRAURU is available in 80″ x 72″ and 28″ x 72″ options. The Jamdok is limited to a small single 72″ x 24″ or twin 75″ x 38″ sizes, so it’s the least flexible for standard RV bunks.
My Final Verdict
The FoamRush 10-Inch Bunk is my clear winner because it’s a full 10-inch replacement mattress, not just a thin topper — that thickness alone makes a massive difference on a hard RV bunk. If you need something portable for a cot or narrow bunk, grab the Jamdok 4-Inch with its machine-washable cover and 4.6-star rating from 200 reviews. The CRAURU works as a cheap quick fix at just 2 inches, but it won’t transform your sleep.
If you’re on the fence, ask yourself this: does your current mattress actually provide support, or is it basically a foam slab? If it’s the latter, spend the money on the FoamRush and stop waking up sore. If your mattress is fine and you just want a little extra softness, the Jamdok is your best bet for the money.
Best Overall: FoamRush 10-Inch Bunk
- Certipur-US Certified for Quality Assurance: Foamrush uses only the quality foam...
- Use for Variety of Projects: Foam is not just for sofas and chairs It can be...
- Easy to Customize: Our foam is easy to work through with tools such as most...
This is for anyone who wants to actually replace their worn-out RV bunk mattress with 10 inches of medium firm gel memory foam. The CertiPUR-US certification and made-in-USA quality give me confidence this will last.
Best Portable: Jamdok 4-Inch Cot Mattress Topper
- 【3-Layer Structure】The mattress topper cover's upper and lower layers are...
- 【Temprorary Sleep Provider】 The cot mattress topper can be used on a cot or...
- 【Thickened Machine Washable Cover】The mattress cover has three side zippers...
This is for campers, truck sleepers, or anyone using a narrow cot who wants 4 inches of gel memory foam with a removable, machine-washable cover that rolls up for transport.
Budget Runner-Up: CRAURU 80″ x 72″ RV Mattress Topper
- Size for RV Bunk Beds: This mattress topper measures 80" ×72" × 2"; It is...
- Relieve Stress: This RV mattress topper features a 2-inch-thick layer of memory...
- Breathable & Comfortable Design: The open-cell foam structure allows air to...
This is for someone who just needs a cheap, lightweight 2-inch topper to soften up an already decent mattress in a travel trailer or truck sleeper. It won’t fix a bad mattress, but it’s easy to handle.
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