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 Now
RV King Mattresses
One of the largest mattress sizes that RVs and travel trailers can accommodate, the RV king size mattress measures 72” wide by 75” long. SleepDog® RV king mattresses are slightly smaller than standard king mattresses, but still provide plenty of sleeping space for your home away from home.
How big is an RV king size mattress?
At 72 inches wide by 75 inches long, the RV king mattress measures 4 inches shorter in width and 5 inches shorter in length than a standard king size.
What RV Models Fit an RV King Bed?
A Class A drivable motor coach, the Thor Miramar comes in 3 different floorplans that are equipped with RV king beds for maximum comfort.
Nexus Phantom & Triumph
The Nexus Phantom 29P and Triumph 29T floorplans are both outfitted with RV king size beds without sacrificing any space for luxury or other amenities.
Three out of the four Fleetwood Fortis floorplans come with an RV king size mattress along with plenty of living space for everyone.
120-night risk-free trial
Try your RV queen size mattress in a box risk-free for 120 nights. If you don't love your new SleepDog® 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.
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 RV king 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.