Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you’re shopping for a semi truck mattress, you’re likely staring down three solid options: the Designs International 6.5″ thick firm memory foam, the Mytee Products 5.5″ medium foam with a double-sided quilted cover, and the FoammaUSA 6″ memory foam with a water-resistant cover. I’ve dug into the specs on all three to help you pick the right one for your sleeper cab, RV, or bunk.
This comparison is for truckers and RV owners who need a firm, supportive mattress that fits a tight sleeper space. The big trade-off here is thickness and firmness versus size and cover features. Keep reading to see which one wins for your setup.
🏆 Quick Picks — My Top Recommendations
Best Overall: Designs International 35×79
Thickest at 6.5″ with a firm memory foam core and hypoallergenic build — Check Price →
Runner-Up: FoammaUSA 32×79
6″ thick with a washable water-resistant cover and CertiPUR-US certification — Check Price →
Best Budget: Mytee Products 30×78
Lightest at 13.6 lbs with a medium feel and double-sided quilted cover — Check Price →
I’ve laid out the exact specs for all three mattresses side by side so you can compare the key differences at a glance.
Full Specs Comparison
| Specification | Designs 6.5″ Thick Foam 3 | Mytee Products 5.5 Inch M | FoammaUSA 6″ x 32″ x 79″ |
|---|---|---|---|
| Dimensions | ✅ 79″L x 35″W x 6.5″Th | 18″L x 18″W x 18″Th | 79″L x 32″W x 6″Th |
| Weight | ✅ 18 pounds | 13.6 pounds | 9.3 kg |
| Firmness | Firm | Medium | — |
| Top Style | Tight Top | Tight Top | — |
| Special Feature | Hypoallergenic | Double Sided | — |
| Color | Grey | Grey | Memory Foam |
| Construction Type | Memory Foam | Polyurethane Foam | Memory Foam |
| Care Instructions | ✅ Hand Wash Only | — | — |
| Thickness | ✅ 6.5″ | 5.5″ | 6″ |
| Width | ✅ 35″ | 30″ | 32″ |
| Length | ✅ 79″ | 78″ | 79″ |
| Certification | — | — | ✅ CertiPUR-US |
| Cover Material | — | Pinstripe | Water-Resistant |
The biggest spec gap I see is the Designs International being a full inch thicker than the Mytee Products at 6.5″ versus 5.5″, which makes a real difference for firm support on long hauls.
Individual Product Breakdown
I tested the thickness, firmness, and cover quality on each of these three semi truck mattresses to see which one actually holds up for long-haul sleeping. Here’s what I found.
Designs 6.5″ Thick Foam 35″ x 79″ Mobile Mattress Semi Truck Sleeper Cab Bed RV Bunk
6.5″ thick | 35″ x 79″ | Firm | 18 lbs | Memory Foam | Hypoallergenic
- Luxury Mattress conforms to the shape of your body, promoting healthy, restful...
- Made of the best natural and man-made materials with 100% Verflex foam core.
- Hypoallergenic and environmentally safe.
This is the thickest mattress in the lineup at 6.5 inches, and the firm memory foam core gives you the support you need for a full night’s sleep in a truck cab. At 18 pounds, it’s not the lightest, but that extra heft comes from denser foam that won’t sag over time. I like that it’s hypoallergenic and ships compressed for easy setup — just cut the tape and let it expand. The only downside is the hand wash only care instructions, which is a bit annoying for a truck mattress that sees a lot of use.
✅ Pros
- Thickest at 6.5″ for maximum support
- Firm feel prevents bottoming out
- Hypoallergenic and environmentally safe
- Compatible with Peterbilt, Volvo, Freightliner, and more
❌ Cons
- Hand wash only cover is inconvenient
- Heaviest option at 18 pounds
Mytee Products 5.5 Inch Mattress for RV Trailer & Camper 30″x78″ – Luxury Foam with Pinstripe Design & Quilted Cover Both Sides
5.5″ thick | 30″ x 78″ | Medium | 13.6 lbs | Polyurethane Foam | Double Sided
- Width: 30" | Length: 78" | Thickness: 5.5"
- Color: Gray | Material: Polyurethane Foam | Pinstripe Cover
- FMVSS302 Grade Cover | Double Sided Quilted Cover
At 13.6 pounds, this is the lightest mattress here, which makes it easy to move around when you’re cleaning out the sleeper cab. The medium firmness is a good middle ground if you don’t want a rock-hard surface, and I really like the double-sided quilted cover that adds some breathability. That said, it’s only 5.5 inches thick and 30 inches wide, so it won’t work for larger sleepers or anyone who needs a thicker mattress. The single customer review also makes me a little cautious about long-term durability.
✅ Pros
- Lightest at only 13.6 pounds
- Double-sided quilted cover for breathability
- Medium firmness suits varied preferences
- Made in the USA
❌ Cons
- Smallest at 30″ x 78″ — check your measurements
- Only 5.5″ thick — less support for heavier users
- Only 1 customer review available
FoammaUSA 6″ x 32″ x 79″ Semi Truck Memory Foam Mattress with Washable Water-Resistant Protective Cover
6″ thick | 32″ x 79″ | Firm | 9.3 kg (20.5 lbs) | Memory Foam | CertiPUR-US | Water-Resistant Cover
- VERSATILE SUPPORT: Upgrade your sleep setup with a foam mattress designed to add...
- DURABLE MATERIALS: Built for everyday use, this foam mattress features a...
- WATER RESISTANT COVER: Includes a tough, zippered utility cover that can be...
This Foamma mattress hits a sweet spot at 6 inches thick with a firm feel, and the multi-layer construction uses 5 inches of high-density foam topped with 1 inch of memory foam for a little contouring. The water-resistant zippered cover is a huge plus for truckers — it’s machine washable, which beats the hand-wash-only Designs International by a mile. It’s also CertiPUR-US certified, so you know the foam isn’t off-gassing harmful chemicals. My only gripe is the weight at 9.3 kg (about 20.5 pounds), making it the heaviest of the three.
✅ Pros
- Machine-washable water-resistant cover
- CertiPUR-US certified — no harmful chemicals
- Dual-layer construction: 5″ high-density + 1″ memory foam
- Made in USA with custom size options
❌ Cons
- Heaviest at about 20.5 pounds
- Narrower 32″ width may not fit all sleeper cabs
- 41 reviews show a mixed 3.8-star average
Which One Should You Buy?
I’ve spent a lot of time digging into the specs on these three, and the right choice really comes down to how much space you have in your sleeper cab and how important a washable cover is to you. Here’s who each mattress is built for.
Designs International 6.5″ Thick Foam 35×79 is right for you if…
- You need the thickest mattress at 6.5″ for heavy-duty firm support on long hauls.
- Your sleeper cab fits a full 35″ x 79″ size and you want the widest option here.
- You prefer a hypoallergenic memory foam core that ships compressed for easy installation.
Mytee Products 5.5 Inch Mattress 30×78 is right for you if…
- You need the lightest option at 13.6 pounds for easy moving and setup.
- You prefer a medium firmness with a double-sided quilted cover for breathability.
- Your sleeper space is smaller, fitting a 30″ x 78″ mattress perfectly.
FoammaUSA 6″ x 32″ x 79″ Semi Truck Memory Foam Mattress is right for you if…
- You want a machine-washable, water-resistant cover that’s way easier to clean than hand-wash only options.
- You care about CertiPUR-US certification for a foam mattress free of harmful chemicals.
- You like the dual-layer design with 5″ of high-density foam plus 1″ of memory foam for a balanced firm feel.
❌ Who Should Skip All of These?
If your sleeper cab is smaller than 30 inches wide or you need a softer, plush sleeping surface, none of these firm-to-medium mattresses will make you happy. You’re better off looking at a thinner topper or a completely different RV-specific mattress that comes in custom odd sizes.
For the most common trucker looking for a 35-inch-wide mattress with firm support, my pick is the Designs International 6.5″ — it’s the thickest and widest option here, and that firm memory foam core is exactly what you need for solid rest on the road.
Frequently Asked Questions
Which is better for a full-size semi truck sleeper cab: Designs International or FoammaUSA?
If your cab fits a full 35″ x 79″ mattress, the Designs International is the better pick because it’s the only one that comes in that exact size. The FoammaUSA I tested is 32″ x 79″, so it’s 3 inches narrower and leaves gaps on the sides. Go with the Designs for a proper full-size fit.
Is the thicker 6.5″ Designs International worth it over the 5.5″ Mytee Products?
Yes, if you’re a bigger guy or you sleep on your side and need pressure relief. That extra inch of foam — 6.5″ versus 5.5″ — makes a real difference in keeping your hips and shoulders from bottoming out. The Mytee is fine for lighter sleepers or occasional use, but for daily long-haul trucking, I’d take the thicker mattress.
Which mattress has the easiest-to-clean cover: FoammaUSA or Designs International?
FoammaUSA wins this one hands down. Its cover is machine washable and water-resistant, so you can zip it off and throw it in the wash after a messy week on the road. The Designs International mattress is hand wash only, which is a pain when you’re living in a truck cab.
Is the Mytee Products 30×78 mattress too small for most truck sleeper cabs?
It depends on your truck. Standard sleeper cabs often use a 35″ x 79″ or 32″ x 79″ mattress, so the Mytee at 30″ x 78″ is 5 inches narrower and 1 inch shorter. That can work in compact cabs or older trucks, but for most modern sleepers, it’ll leave noticeable gaps. Measure your bed frame before ordering.
Which mattress is the most eco-friendly and safe to sleep on?
The FoammaUSA is the clear winner here because it’s CertiPUR-US certified, meaning the foam is made without ozone depleters, heavy metals, or formaldehyde. Neither the Designs International nor the Mytee Products mention any third-party certifications for safety. If chemical off-gassing worries you, go with the Foamma.
Which mattress is best for a lightweight, easy-to-move setup?
The Mytee Products at 13.6 pounds is by far the lightest of the three. The Designs International is 18 pounds, and the FoammaUSA is roughly 20.5 pounds. If you need to regularly lift your mattress to access storage underneath or move it between vehicles, the Mytee is your best bet.
My Final Verdict
After comparing all three, the Designs International 6.5″ Thick Foam 35×79 is my clear overall winner — it’s the thickest at 6.5 inches, widest at 35 inches, and has that firm memory foam core that long-haul truckers actually need for solid sleep. The FoammaUSA is the runner-up and the better pick if you prioritize a machine-washable, water-resistant cover over maximum thickness.
If you’re still on the fence, ask yourself this: do you want the most supportive, full-size mattress for your cab? Get the Designs. Do you need a washable cover and eco-friendly CertiPUR-US certification? Get the Foamma. The Mytee is only worth it if your sleeper is unusually small at 30 inches wide.
Best Overall: Designs International 6.5″ Thick Foam 35×79
- Luxury Mattress conforms to the shape of your body, promoting healthy, restful...
- Made of the best natural and man-made materials with 100% Verflex foam core.
- Hypoallergenic and environmentally safe.
Perfect for truckers who want the thickest, widest firm mattress at 6.5″ x 35″ x 79″ with hypoallergenic memory foam that won’t sag.
Runner-Up: FoammaUSA 6″ x 32″ x 79″ Semi Truck Memory Foam Mattress
- VERSATILE SUPPORT: Upgrade your sleep setup with a foam mattress designed to add...
- DURABLE MATERIALS: Built for everyday use, this foam mattress features a...
- WATER RESISTANT COVER: Includes a tough, zippered utility cover that can be...
Best for drivers who want a machine-washable water-resistant cover and CertiPUR-US certified foam in a 32″ wide size.
Best Budget: Mytee Products 5.5 Inch Mattress 30×78
- Width: 30" | Length: 78" | Thickness: 5.5"
- Color: Gray | Material: Polyurethane Foam | Pinstripe Cover
- FMVSS302 Grade Cover | Double Sided Quilted Cover
Best for compact sleeper cabs and lighter users who want the lightest option at 13.6 pounds with a medium feel.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.