What Size Mattress Fits In A Semi Truck?

When it comes to outfitting a semi-truck with a mattress, size definitely matters. Standard mattresses may not fit appropriately, considering the unique space constraints of a truck sleeper cabin. The most common mattress size for a semi-truck is typically a “truck mattress” measuring approximately 80 inches in length by 42 inches in width. However, it’s crucial to note that mattress dimensions can vary based on the make and model of the truck, so it is essential to measure the sleeper berth before making a purchase.

Understanding the Semi Truck Sleeper Cab

A semi-truck sleeper cab is essentially the living quarters for truck drivers when they’re on the road. These spaces are designed for efficiency and to maximize comfort within a limited area. Although sleeper cabs come in various configurations and sizes, most are designed with a rest space that accommodates a single person.

Unlike home mattresses that follow standard sizing like twin, full, queen, and king, truck mattresses have dimensions that may not align with these traditional classifications. This is because the sleeper cab of a semi-truck is not as wide or long as a regular bedroom. Therefore, manufacturers produce mattresses specifically dimensions to fit the varied spaces of different trucks.

Common Semi Truck Mattress Sizes

While the most prevalent mattress size for semi-trucks is 80 by 42 inches, truck mattresses do come in a variety of sizes. Here’s a look at some common dimensions:

  • 28″ x 79″
  • 35″ x 79″
  • 36″ x 76″
  • 38″ x 80″
  • 42″ x 80″
  • 44″ x 75″

These dimensions are typical, but truck mattress sizes can range widely, with custom sizes available for those drivers who need a unique fit. To be sure of the right size, the most foolproof method is to measure the space yourself.

Tailoring Mattress Size to the Truck Model

Different semi-truck brands and models will have varied inner dimensions for their sleeper cabs. Makes such as Freightliner, Kenworth, Peterbilt, and Volvo may have different standards or offer different sleeper cab sizes. For this reason, a mattress that fits a Volvo semi-truck, for example, may not fit a Freightliner.

Paying attention to the precise dimensions of the sleeper cab will save you from investing in a mattress that doesn’t fit. It’s not just about width and length; height is also a consideration. Thicker mattresses provide more comfort but could potentially limit headroom in a sleeper cab with restricted vertical space.

Measuring the Space for a Truck Mattress

To ensure the best fit, measuring the space where the mattress will go is crucial. Here’s a step-by-step guide:

Step 1: Remove the Old Mattress

To get an accurate measurement, you’ll need to remove any existing mattress or padding. This will expose the bare sleeping platform, which is the area you’ll measure to determine the maximum possible size for the new mattress.

Step 2: Measure the Length and Width

Using a tape measure, determine the length from the head to the foot of the sleeping platform, and then measure the width from one side to the other. It’s advisable to measure twice to ensure accuracy.

Step 3: Consider Any Obstructions or Cutouts

Some sleeper cabins may have wheel wells, built-in storage, or other features that could affect how a mattress fits. Measure these areas and take note of any potential obstructions that could impact the mattress size you select.

Step 4: Note the Height

Measure the distance from the top of the sleeping platform to any overhead cabinets or features. This will give you an idea of how thick the mattress can be without making the sleeping area feel too cramped.

Choosing the Right Mattress for Your Semi Truck

With measurements in hand, the next step is to select a mattress that fits your needs. Here are some factors to consider:

Material and Support

High-density foam, memory foam, and innerspring mattresses are popular choices for semi trucks. The best material for you depends on personal preference, the support you need, and your budget.


Truck mattresses need to withstand the rigors of the road. Look for durable materials that can handle frequent use and have easy-to-clean covers to maintain hygiene.

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Comfort and Thickness

Comfort is subjective, but don’t forget to factor in the thickness you determined based on cab space. Thicker mattresses generally offer more cushioning, but they shouldn’t encroach too much on your sleeping area’s headroom.

Custom Bedding Options

Since truck mattresses aren’t a standard size, you may also need to consider custom bedding or adjustable sheets to ensure a good fit.

Installation and Maintenance Tips

After selecting and purchasing the right mattress, proper installation and maintenance are key to ensure longevity and comfort.

Installing the Mattress

Slide the mattress onto the sleeping platform, and make sure it fits snugly without buckling or bending. If your mattress is vacuum-sealed, allow it time to expand to its full size before use.

Maintaining the Mattress

Regular cleaning will help extend the life of your mattress. Use a mattress protector and clean up any spills immediately to prevent stains and odors. Rotate the mattress periodically to distribute wear evenly.

Finishing Thoughts

Choosing the right mattress for your semi-truck requires precise measurement, considering the make and model of your truck, and understanding what materials and thickness will provide you with the best sleep possible on the road. Remember that the right mattress is not just about size but also about the comfort and support that eases the strain of long driving hours. With the appropriate mattress, you can ensure a more restful sleep, which is essential for your overall health and safety on the road.


  • Aiden Lawrence

    I'm Aiden Lawrence, a certified Sleep Science Coach and senior editor of GoodSleepHub, proud parent of two amazing kids, and a pet lover with a cat and a dog. Join me as we explore the world of sweet dreams and comfy pillows. Let's make bedtime the highlight of your day!

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