What Size is a Semi Truck Mattress? Dimensions Explained

The dimensions of a semi-truck mattress are an essential factor for drivers who spend a significant amount of time on the road. I understand that the quality of sleep can greatly affect a trucker’s comfort and alertness, which is why selecting the right mattress size is more than just a matter of fit; it’s a matter of health and safety as well. Typically, these mattresses are specially designed to accommodate the limited space within a truck’s sleeper cabin and provide the support needed for a restful sleep despite the constraints.

When looking at semi truck mattresses, I find it important to be aware that they don’t come in the standard sizes that one might find in household beds. They are typically narrower and shorter to fit into the compact sleeping area of a semi truck. The most common dimensions are closely aligned with the Twin XL size of a residential mattress, but with slight variations to account for the unique space available in each truck make and model. This tailored fit ensures that every inch of precious cabin space is used effectively, contributing to the driver’s overall comfort.


Key Takeaways

  • The size of a semi-truck mattress is tailored for the space within the truck’s sleeper cabin.
  • Choosing the right mattress size is crucial for the driver’s comfort and quality of sleep.
  • Semi truck mattresses differ from standard residential sizes to maximize cabin space utilization.

Standard Semi Truck Mattress Sizes

When considering the replacement of a mattress for a semi truck, it’s crucial to be aware of the standard sizes that are commonly found within different truck brands. This knowledge is essential for ensuring proper fit and comfort for drivers who spend a significant amount of time on the road.

Dimensions of Common Mattress Sizes

Peterbilt: Most Peterbilt trucks accommodate a 42″x80″ mattress size. However, some models may also fit a 39″x80″ mattress, which is slightly narrower.

Freightliner: Freightliner trucks are commonly equipped with the 40″x80″ size. This strikes a balance between width and length, making efficient use of the cabin space.

Kenworth: For Kenworth trucks, the typical mattress size is similar to Peterbilt, with standard dimensions being 42″x80″.

International: International truck cabins often feature a 38″x80″ mattress, a bit narrower compared to other brands to fit their unique cabin design.

Volvo: Volvo trucks tend to have more uniform mattress sizes, often measuring 42″x80″, which is a standard size for many semi trucks.

Comparison of Sizes Across Truck Brands

Peterbilt and Kenworth share the same common mattress size, which often makes cross-brand compatibility simpler for these two.

Freightliner has positioned itself with a slightly different standard size, which may require specific sourcing when looking for a replacement mattress.

International trucks usually have mattresses that are narrower by a few inches, necessitating a dedicated search for the perfect fit.

Lastly, Volvo, known for its emphasis on driver comfort, maintains a standard size that is widely available and fits most of their models.

Choosing the Right Mattress for Your Semi Truck


When outfitting your sleeper cabin, selecting the right size mattress is crucial for both comfort and space optimization. My aim is to guide you through the details necessary to make an informed decision.

Importance of Mattress Size

Size matters when it comes to a mattress for your semi truck. A mattress that’s too small can leave uncomfortable gaps, while one too large may not fit the sleeper cabin properly. Most semi truck models, like the Peterbilt 579 or the Volvo VNL 760, have specific mattress size requirements that must be met to ensure a proper fit. Standard sizes in the industry tend to be similar to twin or bunk sizes, often around 80 inches in length and 36 to 42 inches in width.

Considering Cab Size and Truck Model

When I consider the sleeper cabin size and truck model, it’s important to be precise. For instance, the International Pro Sleeper may have different dimensions compared to a Volvo VNL 760. Here’s a quick reference table for common semi truck models and their corresponding mattress sizes:

Semi Truck Model Mattress Size (L x W)
International Pro Sleeper 80″ x 42″
Volvo VNL 760 79″ x 36″
Peterbilt 579 81″ x 39″

Checking the truck’s manual or manufacturer’s website can provide exact dimensions for your particular make and model. It’s important to note that comfort is also tied to thickness and material, which should be considered alongside the mattress’ dimensions.

Types of Semi Truck Mattresses

When I am on the road, comfort and rest are crucial, and choosing the right semi truck mattress can make a significant difference. The semi truck mattress options primarily include memory foam, innerspring varieties, and specialty mattresses, each offering unique benefits tailored for life on the road.

Memory Foam Options

Memory foam mattresses are known for their superior contouring and pressure relief capabilities. The dense composition of memory foam material provides a responsive sleep surface that adapts to my body shape, which can be particularly beneficial after long hours of driving. They are also durable and less likely to sag over time.

Innerspring Varieties

Innerspring truck mattresses, on the other hand, offer a more traditional feel with a bit of bounce. They typically incorporate steel coils that provide a firm support system, paired with layers of cushioning for comfort. This type is often more breathable than memory foam, which keeps the sleeping surface cooler.

Specialty Truck Mattresses

Some manufacturers offer specialty truck mattresses, which can range from luxury, high-end designs to those addressing specific needs like reduced vibration from the truck bed. These mattresses often combine various materials, such as cooling gel-infused memory foam layers atop resilient innerspring systems, bringing together the benefits of both types for a restful sleep. They may also include custom modifications for a perfect fit within my rig.

Mattress Firmness and Support Features


When searching for the ideal semi truck mattress, it’s important for me to consider both firmness and the materials used to provide support. These factors are crucial in ensuring that the mattress delivers both comfort and proper spinal alignment, especially for the areas that need it most like the hips and shoulders.

Firmness Levels

  • Soft: Often preferred for side sleepers as it allows the shoulders and hips to sink in, providing better pressure relief.
  • Medium: This level works well for a variety of sleep positions, offering a balance of support and comfort.
  • Firm: Ideal for back and stomach sleepers, a firm mattress supports the spine and prevents the hips from sinking too deeply.

Supportive Materials

  • Innerspring Coils: Traditional and very supportive, these coils provide a firm feel and help maintain proper spinal alignment.
  • High-Density Foam: A layer of this foam adds to the mattress’ ability to cradle the body’s pressure points without compromising support.
  • Memory Foam/Gel Infusions: These materials are designed to distribute body weight evenly, reducing pressure on the hips and shoulders.

Choosing the right combination of firmness and supportive materials is key to a good night’s rest, which can help me feel rested and alert during long hauls.

Comfort Considerations for Truck Drivers


When it comes to long-haul trips, my sleep quality is paramount. I understand that the mattress inside my semi truck plays a crucial role in ensuring restorative rest and preventing fatigue-related risks.

Mattress Thickness

From my experience, mattress thickness can greatly impact sleep quality. A mattress that is too thin can cause discomfort, especially if I can feel the bed’s base through it. Typically, semi truck mattresses range from 4 to 7 inches in thickness. I found that opting for a mattress closer to the 7-inch mark provides significant improvement in comfort, especially for a side sleeper like me. A thicker mattress supports the body’s contours, reduces pressure points, and peers in the field agree it’s supportive for back sleepers as well.

Comfort Layers

To enhance comfort, I pay attention to the layers of the mattress. A well-constructed mattress should have multiple comfort layers. The top layers often consist of memory foam or gel-infused foam, which aids in motion isolation and provides a plush surface that molds to my body. As a back sleeper, I need this layer to be supportive enough to keep my spine aligned. Some mattresses feature cooling technology, which helps regulate temperature and ensures I don’t overheat during the night—a critical aspect for me when I travel through warmer climates.

Mattress Durability and Quality


When I consider the durability and quality of a semi truck mattress, two critical aspects come to my mind: the materials used and their endurance over time, and the warranty coverage that backs up the product.

Materials and Durability

The core materials in a semi truck mattress are fundamental to its durability. Typically, high-density foam or innerspring coils are employed for their resilience to continuous pressure from the truck’s movement. My sleep in a moving truck needs to be supported by a mattress that can withstand the rigors of the road, so confirming a high quality build is essential. Evidence of mattresses designed to endure these conditions can be found in studies such as the Tech4Rest pilot study, which indicates the importance of mattress quality for commercial drivers.

Warranty and Replacement

A good indicator of a mattress’s quality is often the warranty offered by the manufacturer. I expect a replacement mattress to come with at least a 10-year warranty, as this reflects the confidence of the manufacturer in their product’s durability. The warranty should straightforwardly cover common issues like sagging and deep impressions, ensuring that my investment is protected over time.

Additional Bedding Accessories

When equipping a semi truck mattress for improved sleep quality, I understand that the right accessories play a critical role. Not only do they enhance comfort, they also protect and extend the life of the mattress.

Mattress Toppers

To boost the comfort level of the truck mattress, a pillow top mattress topper can be a game-changer. It adds a plush, cushioning layer that makes the firm mattress beneath more welcoming. Companies such as Brooklyn Bedding offer a variety of toppers which cater to different preferences, ensuring that whether I prefer a firmer or a softer sleeping surface, I have options.

Protective Mattress Covers

For maintaining the cleanliness and increasing the longevity of my mattress, I consider hypoallergenic protective mattress covers essential. They shield the mattress from spills, dust, and other contaminants. The covers provided by Mattress Insider are a notable mention, designed to fit snugly over semi truck mattresses and often include features like waterproofing and allergen barriers. This not only helps to keep my sleeping area clean and hygienic but also prevents premature wear and tear on my mattress.

Regulatory Compliance for Semi Truck Mattresses


Ensuring that semi-truck mattresses meet certain standards is vital for the safety and comfort of truck drivers. Regulations are set by the Department of Transportation (DOT) and various industry bodies.

DOT Standards

DOT standards are integral for the safety of semi-truck drivers. I know that DOT-approved mattresses must meet specific dimensions to fit securely within the sleeping area of the truck, reducing the risk of accidents caused by ill-fitting mattresses. The regulation also implies that the mattress materials should meet certain flammability standards to protect drivers in case of a fire.

Industry Regulations

Industry regulations often exceed DOT standards, and well-regarded industry leaders provide semi-truck mattresses designed for durability and comfort. These frequently come in standard sizes compatible with semi-trucks and RV mattresses, addressing the unique needs of drivers who spend long hours on the road. It’s imperative that mattresses offer proper support and comfort to prevent driver fatigue and the accompanying safety risks. Regulations may also cover aspects of hygiene and cleanliness, critical for drivers who live much of their lives on the road.

Frequently Asked Questions

In this section, I cover some of the most common inquiries about semi-truck mattress sizes, ensuring you have precise dimensions and guidelines for several popular truck models.

What are the standard dimensions of a semi-truck mattress?

The standard dimensions for semi-truck mattresses can vary, but they typically measure around 80 inches in length and 36 to 42 inches in width. However, custom sizes are also available to fit the diverse cabin configurations of different trucks.

What mattress sizes will fit in a Kenworth T680?

A Kenworth T680 often accommodates a mattress that is approximately 42 inches wide by 80 inches long. It’s important to measure the space available, as some variations might occur.

What is the size of a mattress for a Peterbilt 579?

The mattress size for a Peterbilt 579 is usually designed to be 42 inches wide by 75 inches long, but again, it’s advisable to measure your specific model for the exact fit.

How do I determine the right size mattress for a Volvo semi-truck?

To determine the right size mattress for a Volvo semi-truck, I recommend measuring the sleeper berth’s length and width. Most commonly, the mattresses for these trucks range from 38 to 42 inches in width and 75 to 80 inches in length.

Are there specific mattresses for different models of semi trucks?

Yes, there are specific mattresses designed for different semi-truck models to ensure they fit snugly within the sleeper cabin’s space without wasting room or causing discomfort.

Where can I find a semi-truck mattress that is 42 inches by 80 inches?

You can find a semi-truck mattress with dimensions of 42 inches by 80 inches at truck stop shops, online retailers specializing in trucking equipment, or through a custom mattress provider that supplies to the trucking industry.

About the author, Laurence Perkins

Laurence Perkins is the passionate car enthusiast behind the blog My Auto Machine. With over a decade of experience in the automotive industry, Perkins has knowledge and experience with a wide range of car makes and models. His particular interests lie in performance and modification, and his blog covers these topics in-depth. In addition to his own blog, Perkins is a respected voice in the automotive community and writes for various automotive publications. His insights and opinions on cars are highly sought-after.