Friends & Family Sale: Up to 25% off
800.588.5720
Friends & Family Sale: Up to 25% off
800.588.5720
Friends & Family Sale: Up to 25% off

Size A Semi Truck Mattresses

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.

SleepDog® Mattress Product Image
SleepDog® Mattress
7” multilayer memory foam construction infused with CoolRest® technology for maximum comfort & support.
Firmness: Medium-firm
A $389.25 $519
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BigDawg® Mattress Product Image
BigDawg® Mattress
Our best-selling mattress made with a 9” plush, multilayer memory foam & pillow-top construction.
Firmness: Medium-soft
A $516.75 $689
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How big is a size A semi-truck mattress?

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.

Mattress Size Chart

What semi-truck models fit a size A truck mattress?

Peterbilt 5799 sleeper

Peterbilt 579 Sleeper

A generously sized sleeper cab available in multiple configurations with all the comforts of home.

Freightliner Cascadia

Freightliner Cascadia

Cascadia models are often equipped with 36” x 80” mattresses along with other customizable amenities.

International 56" Sleeper

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.

120-night risk-free trial

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.

120-night free trial
safe, supportive memory foam

Built for the road

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.

Sleep now, pay later

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.

sleep now, pay later
 

Which A Size SleepDog® is right for you?

SleepDog® Mattress Product Image
SleepDog® Mattress

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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BigDawg® Mattress Product Image
BigDawg® Mattress

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.

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