
Semi trucks come in various sizes, but one of the most important considerations is the bed size. You'll typically find three main types: the standard, the extended, and the double extended.
The standard bed size is 72 inches wide and 26.5 feet long. This is the most common size and is suitable for most loads.
Semi trucks with extended beds can be up to 53 feet long, giving you more space to haul larger or bulkier items.
Semi Truck Bed Sizes
A standard twin size mattress for a semi truck measures 38 inches wide by 75 inches long, providing just enough space for a single person to sleep comfortably.
The full size mattress, also known as a double mattress, is a bit wider and longer, measuring 54 inches wide by 75 inches long.
You'll often see a queen size mattress in semi trucks, which measures 60 inches wide by 80 inches long, offering a comfortable sleeping surface for individuals or couples.
The short queen size mattress is similar, but with a shorter length, measuring 60 inches wide by 75 inches long.
Custom mattress sizes can also be made to fit specific semi truck sleeping areas, allowing for maximum space utilization and comfort.
Here are the standard mattress sizes for semi trucks:
A Size A semi-truck mattress is slightly narrower than a standard twin size mattress, measuring 36 inches wide by 80 inches long.
Choosing the Right Bed
Choosing the right bed for your semi truck is crucial for optimizing space and ensuring comfort. A mattress that is too small can slide around, causing unsafe conditions.
To choose the right size bed, start by checking your current mattress. If you're replacing a worn-out mattress, take a close look to see if it fits your sleeper space well. If you can't find a law label, measure the length, width, and height of your current mattress.
Most semi trucks are equipped with a twin size mattress, which is 38 inches wide and 75 inches long. You can also consider the 7 most common sizes for truck mattresses: 32×80, 34×80, 36×75, 36×79, 38×80, 42×80, and 42×85.
Factors to Consider

Choosing the right bed for your semi truck requires careful consideration of several factors. Measuring the available space in your truck's sleeping area is essential to determine the maximum size mattress that can fit comfortably.
The available space in your semi truck's sleeping area will dictate the maximum size mattress you can fit. Consider the width, length, and height of the sleeping space to ensure a comfortable fit.
Your personal sleeping preferences play a significant role in choosing the right mattress size. If you prefer more space to stretch out, you might want to opt for a larger size mattress.
A twin size mattress is a common choice for semi trucks, measuring 38 inches wide and 75 inches long. However, if you sleep with a partner, a queen or short queen size provides more space for both individuals.
Your body size and weight also impact the choice of mattress size. Taller or heavier individuals may require a larger size to ensure adequate space and support while sleeping.

Comfort and support are crucial considerations when choosing a mattress size. A mattress that is too small or too firm can lead to discomfort and sleep disturbances.
Storage space is another essential factor to consider. Ensure that the chosen mattress size does not take up too much space or hinder access to storage compartments.
Your budget is also a significant factor in choosing the right mattress size. Larger mattress sizes tend to be more expensive, so it's essential to select a size that fits within your budget.
Here are some essential factors to consider when choosing a mattress size for your semi truck:
Key Takeaways
Choosing the right bed is a crucial decision that affects your comfort, health, and overall well-being. Accurately measuring the available space in your home for a bed and considering personal preferences, body size, and budget constraints are essential factors when choosing the right bed size.
A semi truck mattress size is crucial for optimizing space, ensuring comfort, promoting health and well-being, facilitating easy maneuverability, and increasing resale value.
Choosing a bed that's too small can lead to discomfort and even health issues, such as back pain and sleep disorders.
Understanding Semi Truck Beds
A size A semi-truck mattress measures 36” wide by 80” long.
These dimensions are 2” narrower than a standard twin or twin XL mattress, but maintain the same length as standard twin XL, queen, and king mattress sizes.
Cascadia models often come equipped with 36” x 80” mattresses, along with other customizable amenities.
What Thickness Is Needed?
When choosing a semi-truck mattress, you'll want to consider the thickness. The recommended thickness for a semi-truck mattress is between 2 and 10 inches.
A 7-inch profile is a common option, offering durable support and comfort for over-the-road driving. Some semi-truck mattresses are also available in a 9-inch profile.
The right thickness will depend on your personal preferences and needs, but knowing the standard range can help you make an informed decision.
Difference Between a Mattress and a Regular
The difference between a mattress and a regular mattress is actually quite straightforward.
The only difference between truck mattresses and standard mattresses are their dimensions.
Truck mattresses tend to have a slightly slimmer profile than a standard mattress size, which is a must for sleeper trucks to save space in the cab.
Semi Truck Models and Beds
Some semi-truck models are designed to fit a size A truck mattress, which measures 36” wide by 80” long.
Cascadia models are often equipped with 36” x 80” mattresses.
It's essential to measure the width and length of your sleeper berth to ensure the best fit for your new mattress, even if your sleeper cabin accommodates standard semi-truck mattress sizes.
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Freightliner
Freightliner is a well-known brand in the semi-truck industry, and their sleeper trucks are a popular choice among drivers. One of the key considerations when choosing a Freightliner truck is the mattress size.
The most common Freightliner mattress sizes that fit in Freightliner trucks are 42×80 and 38×80. These sizes are perfect for the Cascadia sleeper truck and the 122SD truck with a sleeper cab option.
If you're looking for a smaller mattress, Freightliner also offers 39×80 and 34×80 options. These sizes are ideal for drivers who prefer a more compact sleeping space.
Here's a quick reference guide to Freightliner mattress sizes:
Comparison of Different
A twin size mattress is the smallest option available for a semi truck, measuring 38″ x 75″ and suitable for solo drivers with limited space.
The full size mattress, also known as a double mattress, provides more width and length compared to a twin size, making it suitable for drivers who prefer extra space.
A queen size mattress is a popular choice for those who desire more sleeping space in their semi truck, providing additional width and length.
The short queen size mattress is similar to the standard queen size, but with a slightly shorter length, making it a suitable choice for individuals or couples who want a wider sleeping surface but have limited space in terms of length.
A custom mattress size can also be made to fit specific semi truck sleeping areas, tailored to the unique dimensions of the truck cabin.
Here's a comparison of different semi truck mattress sizes:
Ultimately, the best mattress size for a semi truck is one that provides the right balance between comfort, functionality, and space utilization.
Frequently Asked Questions
Does a twin mattress fit in a semi truck?
A standard twin mattress may fit in some semi-truck beds, but a custom truck-specific mattress is usually a better fit. Check the dimensions to confirm compatibility.
What size bed sheets is in a semi truck?
We offer bedding for semi truck mattresses in various sizes, including 42×80 fitted bed sheets, which are a popular choice. Provide your truck's bed dimensions for a custom-fit microfiber sheet set.
What size mattress is 42x80?
The 42x80 mattress size is often referred to as a "Semi-Truck mattress" and is similar to a Twin mattress but slightly wider and longer.
Sources
- https://www.sleepdogmattress.com/pages/size-a-semi-truck-mattresses
- https://esteebedding.com/what-mattress-size-fits-in-a-semi-truck/
- https://esteebedding.com/how-to-get-the-right-size-truck-mattress/
- https://storables.com/furniture/bedroom-furniture/what-size-mattress-is-in-a-semi-truck/
- https://www.sleepdogmattress.com/pages/semi-truck-mattress-size-guide-and-dimensions
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