Size A semi truck mattresses are often a perfect fit for tight over-the-road sleep quarters. Slightly narrower in width than a standard twin size, the size A mattress measures 36” wide by 80” long.
Measuring 36” wide by 80” long, a SleepDog® Size A truck mattress comes in at 2” narrower than a standard twin or twin XL, but maintains the same length as standard twin XL, queen, and king mattress sizes.
Peterbilt 579 Sleeper
A generously sized sleeper cab available in multiple configurations with all the comforts of home.
Freightliner Cascadia
Cascadia models are often equipped with 36” x 80” mattresses along with other customizable amenities.
International 56” Sleeper
A no frills, industry leading long-haul truck series equipped with all the over-the-road basics.
*Please note: When looking for a replacement mattress it is important to know the exact measurements of your sleeping area. While most sleeper cabins accommodate standard semi-truck mattress sizes, the best and most accurate way to measure for your new mattress is to measure the width and length of your sleeper berth.
Try your size A semi-truck mattress risk-free for 120 nights. If you don't love your new SleepDog® truck mattress after sleeping on it for 60 nights, let us know and we will get the return process started. Details can be found in our Return Policy.
All of the memory foam we develop for our truck and RV mattresses is CertiPUR-US® certified and DOT approved. This means that the foam in each semi truck mattress has been tested by accredited labs and has been certified as safe to sleep on, as well as appropriate for road travel. We use multiple layers of our house-made memory foam to provide the perfect balance of support and pressure relief for all sleepers.
We partner with Affirm to offer flexible financing options, so you can pay with fixed monthly payments with rates between 0-30% APR. Simply select Affirm at checkout and complete an application that won’t affect your credit score. Prequalify Now.
The SleepDog® mattress is our 7” low profile dual layer memory foam mattress with a medium-firm feel that contours to your body and minimizes motion transfer to accommodate semi-truck or RV traveling.
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The BigDawg® features a 9” plush multilayer memory foam and quilted foam cover construction, making it a double-sided mattress that can be flipped for either a soft or firm feel.
Shop NowSize A semi-truck mattresses are slightly narrower than standard twin size mattresses, measuring 36 inches wide by 80 inches long. Their 80 inch length measures the same as standard twin XL, queen, and king size mattresses.
Truck sleeper cabins in semi-truck models including the Peterbilt 579, Freightliner Cascadia, and International 56" Sleeper are frequently equipped with Size A mattresses.
Size A SleepDog® mattresses are DOT approved and designed with multiple layers of CertiPUR-US® certified memory foam to give truck drivers a safe and supportive place to sleep. The mattresses are built to minimize motion transfer and provide pressure relief while withstanding the rigors of road travel.
Yes. SleepDog® provides a risk-free 120-night sleep trial for all truck mattresses and RV mattresses. If you’re not satisfied with your Size A truck mattress after sleeping on it for 60 nights, you may begin the return process. See the Return Policy for further information
SleepDog® partners with Affirm to offer flexible financing. These options enable qualifying customers to make easy monthly payments at interest rates ranging from 0% to 30%. Learn more about our financing options here.
