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Best RV King Size Mattress

Last Updated: July, 2024 | This Post May Contain Affiliate Links

For people who like traveling a lot, a recreational vehicle is a perfect tool that offers the opportunity to visit new places and experience breathtaking adventures and beautiful scenery. These adventures can only be enjoyable if comfort is part of the whole experience—which is why a cozy mattress is crucial, especially for a restorative and goodnight’s sleep. If you're craving sleep comfort similar to your standard king mattress at home, then an RV king model is the ideal solution.  

According to our mattress tests, the best RV king size mattress is the PlushBeds Cool Bliss Memory Foam Mattress. It boasts fantastic features that guarantee a similar level of support and reliability as a traditional king size mattress.

In this review, we'll explore some of the best RV king mattresses currently on the market, along with essential factors to consider when selecting the right mattress for your RV travels. Without further ado, let's jump into it.

Our Top Best RV King Mattresses 

Though RV mattresses come in different sizes like queen, double, twin xl and other sizes, we’ll focus our review mostly on RV king models. Note that an RV king mattress bears a similar size of sleeping surface as a standard king and split king mattress only that it is designed to fit inside an RV. Regardless of whether these mattresses offer similar sleeping space, it's worth noting that standard mattresses may not always be suitable for RVs since they are not built to offer sleep comfort inside a recreational vehicle.

Before we get into the review, below is an overview of our best RV mattresses to help you understand briefly what each mattress will offer you.

5 Best RV King Mattresses


PlushBeds Cool Bliss Memory Foam Mattress


Courtesy of its three foam layers, this Plushbeds cool bliss RV king model is among the best medium firm mattresses that offer cutting-edge pressure relief and excellent body contouring. Additionally, these RV mattresses come with breathable organic cotton covers and cooling gel memory foam comfort layers that give hot sleepers a cool and sweat-free sleep experience night after night.


Amerisleep AS3 Mattress


The top memory foam comfort layer of this mattress features the proprietary 3-inch cooling Bio-Pur foam designed to provide superior breathability and additional comfort. Beneath it is the responsive 2-inch affinity foam layer that helps relieve painful pressure points, while the 7-inch Bio-Core foam offers the mattress a durable foundation.


PlushBeds Botanical Bliss Organic Latex Mattress 


The PlushBeds Botanical Bliss Organic latex is made of natural materials, making it ideal for allergic individuals. Moreover, its organic Dunlop latex construction helps provide solid support and exceptional pressure relief to those who wake up with frequent body aches.

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Molecule Hybrid Mattress


This Molecule Hybrid Rv King mattress’ comfort layer features AirTEC foam which helps with temperature control to help you sleep cooler. Additionally, its support layers consist of individually wrapped coils that provide sleepers with targeted lumbar support and minimize motion transfer between co-sleepers. 

SleepOvation mattress

SleepOvation Mattress


SleepOvation bears a unique construction design consisting of more than 700 tiny mattress columns, which are independent cushions that contour to the shape of your body. Additionally, this RV king mattress’ sleep surface bears a breathable, moisture-wicking fabric designed to keep you cool and shield you from sweating. 



  • Medium firmness level offers sleepers perfect comfort and support balance
  • Memory foam and latex construction helps you sleep cool during hot summers
  • Airflow design helps distribute weight evenly across the sleep surface, offering superior pressure relief


  • A bit pricey for individuals on a tight budget


Buyers looking for a top-tier cozy RV bunk mattress that will provide an exceptional sleeping experience while on outdoor adventures should seek the PlushBeds Cool Bliss mattress. The mattress’ unique composition of cooling memory foam and cutting-edge latex construction guarantees sleepers excellent comfort and support all night. 

Among this RV bunk mattress' most prized stand-out features is its natural latex layer. The latex construction bears a responsive feel that is ideal for sleepers who like a bouncy mattress. Since the mattress is also naturally hypoallergenic and free of VOCs, it's a perfect fit for allergy sufferers.

Another excellent feature is the bed's thick layer of cooling memory foam. The layer dissipates your body heat, keeping you comfortable and cool even during hot summer nights. Rest assured that this cooling design will also shield you from night sweats regardless of the RV's limited space, which can sometimes make it a bit harder to regulate the temperature of your sleeping surroundings.

RV enthusiasts looking for a comfortable and supportive mattress of various sizes will find the PlushBeds Cool Bliss memory mattress to be the perfect option because it's also available in RV short queen size. This top-tier bedding option will offer you great support, comfort, and superior temperature regulation each night in your RV when enjoying outdoor adventures.



  • Proprietary memory foams are designed to help with cooling more efficiently than traditional memory foam
  • Foams help deliver top-notch pressure relief  
  • Ideal for combination side and back sleepers


  • May not be ideal for heavyweight sleepers


Are you looking for an RV King Mattress that will grant you superior comfort in your motorhome? Then it would be best to consider checking out this Amerisleep AS3 Memory Foam Mattress. Thanks to its proprietary HIVE®, Bio-Pur®, and Affinity foam, which help deliver exceptional pressure relief, most buyers widely recognize it as a world-class luxury mattress. 

RV fanatics looking for a sleeping surface that can fit in a limited space or space designed for custom mattress sizes will be glad to know that this Amerisleep AS3 Memory Foam RV Mattress will be a great addition to their motorhome. Though many RV mattresses can be difficult to upgrade because of their shapes or sizes, this Amerisleep AS3 Memory Foam king size Mattress is made to fit all kinds of RV beds.

Another benefit of sleeping on this RV mattress is the structural design which offers sleepers optimal pressure relief. You can rest assured you'll be able to sleep comfortably and wake up in the morning feeling rejuvenated and free of body aches. Finally, this Amerisleep AS3 RV mattress is made from sturdy materials that ensure it lasts many years.

PlushBeds Botanical Bliss Organic Latex Mattress 

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  • Multiple foam layers help relieve painful pressure points
  • Hypoallergenic nature of the materials is beneficial for individuals plagued with allergies
  • Quite affordable for buyers with tight budget plans


  • Slightly above average cooling capability 


Another excellent pick that would make an excellent luxurious, and comfortable addition to your RV is the Brooklyn Bedding Dreamfoam Essential Mattress. It comes in multiple RV mattress sizes, including king sizes and RV bunk sizes that are excellently compatible with most bedding spaces of RVs. With its incredible adaptability to RV sleeping spaces, this mattress is definitely a great option for people who move more often.

Generally, this Brooklyn Dreamfoam Mattress is designed to help deliver great support and comfort. The mattress comprises several foam layers, each made to provide excellent pressure relief wherever needed on various areas of your body. These layers combined make the Mattress an ideal fit for relieving body aches. 

If you or any of your loved ones is an allergic sufferer, the hypoallergenic nature of the materials of this mattress will help shield them against such attacks. Overall, the Dreamfoam Essential mattress is an excellent pick for people seeking a dependable high quality mattress. And since it's also made of high quality materials, it ranks highly in the durability department. 

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  • Excellent balance of softness and firmness provides sleepers with superior cushioning
  • Innerspring design and the cooling gel provides hot sleepers with excellent cooling 
  • Solid edge support helps prevent premature sagging 


  •  Not ideal for buyers looking for responsive RV bunk mattresses


Molecule Hybrid RV King is one of the best hybrid mattresses cur rently available in the market, and it's designed specifically to fit perfectly in the limited space of an RV. Aside from the king size models, Molecule’s production line also comprises RV short king mattress versions—which make incredible size choices for buyers seeking alternatives based on the size of the sleeping area in their motorhomes. So, if you want a hybrid mattress that will guarantee you the sleep comfort of a conventional mattress when away from home, then this is your go-to mattress. 

Since Molecule is a sophisticated hybrid RV mattress, the combination of its pocketed coils and foam construction provides sleepers of various body types with an exceptional sleep experience. Thanks to its multiple comfort layers, you can be sure of world-class support and comfort throughout the night. For instance, its top comfort layer is excellently cushioned to contour and conform closely to your body, helping you achieve a rejuvenating goodnight’s sleep.

Another important aspect of its hybrid design is its superior airflow and temperature control design that keeps you cool throughout the night, even during hot summers. More importantly, the combination of pocketed coils and the foam construction design ensures your spine is properly aligned.

SleepOvation mattress


  • 700+ foam columns combine to provide great pressure relief and personalized comfort
  • Innerspring construction ensures proper spinal alignment.
  • Pocketed innerspring construction and spacing between the tiny foam columns help promote efficient airflow to keep cool. 


  • Not an ideal choice for individuals who prefer an all-foam feel


A good mattress topper for side sleepers will help you feel cool throughout the night while preventing your hips from hurting. That’s what this Molecule Air Tec Topper is all about. You just place it atop your bed to feel the way the certified foam cools you throughout the night. This foam has been specifically engineered to keep you cool without compromising your support or comfort.

The cooling factor is really the best stand out factor with this Air Tec topper. It’s actually difficult to feel warm throughout the night since this topper moves so much air through it. even when compressed, the airflow is consistent and comfortable. It’s great that it appears to be long-lasting too, so no matter how many times you lie down on it, it will continue to work to its best standard.

SleepOvation RV King Mattress is another great hybrid mattress offering sleepers excellent comfort and support balance. Aside from the RV king, this hybrid bed model comes in various other sizes, including RV Queen and RV Short King sizes. Without forgetting, the mattress is also designed to satisfy the unique sleeping needs of people who enjoy travelling in RVs.

One of the unique features of this Sleepovation hybrid mattress is the 700+ separate foam columns, which combine to provide sleepers with great support and excellent pressure relief. Every column responds independently to your body movements, ensuring a serene slumber all night long. Moreover, its individually pocketed coils and foam layers help promote healthy spinal alignment.

Another outstanding feature of this hybrid RV king mattress is its adaptability to specific RV Mattress space dimensions. So, Whether you’re using an RV short King sleeping space or intend to pair it up with an RV queen bedding space, this SleepOvation mattress has you covered. So if you’re planning to camp out in your RV or on your way to a long road trip, you can rest assured that this mattress will grant you top-notch sleep comfort similar to your conventional standard king size mattress back at home.

Factors to Consider Before Purchasing an Rv King Mattress

As a fan of camping or someone who enjoys road trips on RVs, comfort is of the utmost significance when looking for the best RV mattress for your mobile motorhome. Depending on your personal preferences and comfort needs, there are numerous models of rv king mattress types to pick from. And since you're hunting for a king size model, getting a high-quality RV king mattress is vital for a rejuvenating, cozy, and enjoyable slumber.

Below are some crucial factors that will help lead you in the right direction.

RV King Mattress Size

It is imperative to know the exact dimensions of your RV bed before making a rash decision to buy an RV King Mattress. Among the most popular RV standard sizes are twin and twin XL, bunk beds, and queen and short queen.

You may experience difficulty fitting the mattress in your RV bed if you choose the wrong size, which can make your outdoor adventures in your motorhome quite unpleasant. In case you’re unsure whether your RV king mattress size will fit on your RV bedding space, you can use a tape measure to take down the measurements, such as thickness, length, and width, and compare it with the appropriate RV king size mattress you’d like to buy. 

Mattress price

Price is another important consideration before purchasing an RV king mattress. Due to the wide variety of RV mattress choices available, customers have multiple options to pick from, depending on their budget. Brand, material design, and quality of the mattress are a few factors that may affect how much an RV mattress costs. 

Note: it's not always that mattresses with lower price tags are automatically low quality. For instance, a budget friendly option is our Brooklyn Dreamfoam Essential Mattress. This is a perfect fit for road trip enthusiasts who want to experience the sleep comfort of a conventional mattress. On the other hand, the Plushbeds Cool Bliss Memory Foam model is an ideal option for individuals seeking a high-end luxurious mattress that guarantees them the sleep experience of a 5-star hotel bed. 

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To ensure that every penny of your investment will be worth the price of the mattress, you should opt for an Rv mattress with exceptional durability. Durability is an important aspect when it comes to performance and effectiveness on a long-term use basis. 

From our selection, we’d recommend you opt for the Plushbed Botanical Bliss latex model since latex mattresses are known to be highly durable. But if you’d like a long-lasting memory foam RV king mattress, then we suggest you go for the Plushbed Botanical Bliss Memory Foam model. Aside from these two RV king mattresses, the other three in this review would also make an excellent replacement for your existing mattress. If you want to extend your RV mattress’s longevity further, consider pairing it up with a mattress topper.

Firmness level

As with any conventional mattress, ensure the rv king model you’ve chosen has support and firmness levels that suit your comfort needs. RV mattresses are customizable and designed to offer similar comfort and support levels as a typical home mattress. In the same way, they're available in various size options, they're also available in multiple firmness levels. 

Depending on your sleeping position, you can choose whichever option works better for you. For instance, a medium soft model will be a perfect fit for a side sleeper seeking a pressure and pain-relieving RV bunk mattress. Additionally, a firmer RV mattress will be ideal for back and stomach sleeping, especially for individuals who need extra support in these sleeping positions, as it is vital for healthy spinal alignment. Individuals with no knowledge of the appropriate mattress firmness level ideal for their comfort needs should opt for the commonly available medium firm models. 

Closing Thoughts

In conclusion, choosing the best RV king mattress that suits your sleep comfort preference is key for a refreshing, supportive and comfortable slumber when setting out for outdoor adventures. When considering various aspects of creating a comfortable sleeping environment in your motorhome, also remember that bedding space in your RV and sleeping arrangements are crucial. 

Whether you’re a back, side or stomach sleeper, investing in any of the above-mentioned RV King mattresses will surely be worth the price. Not only will you enjoy exceptional relaxation in your camping expeditions but also more space for ultimate road trip comfort.

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