If you’re shopping for a new bed for your recreational vehicle, one of the first questions you’ll ask is, what is the size of an rv king mattress? It’s a common question, but the answer isn’t as straightforward as you might think. Unlike standard home mattresses, RV sizes can vary. This guide will explain everything you need to know about RV king mattresses, including their typical dimensions, how they compare to residential sizes, and what to consider before you buy one.
Getting the right fit is crucial for both comfort and safety on the road. A mattress that’s too big won’t fit your RV’s specific space, and one that’s too small can leave awkward gaps. Let’s clear up the confusion so you can make the best choice for your mobile home.
What Is The Size Of An RV King Mattress
The most common size for an RV king mattress is 72 inches wide by 75 inches long. This is often called a “Short King” or “RV King.” It’s important to remember this is the typical size, but not a universal standard. Always, always measure your RV’s bed platform before purchasing.
This RV king is 6 inches narrower and 5 inches shorter than a Standard (Eastern) King mattress found in most homes, which measures 76″ x 80″. The difference is designed to fit within the narrower walls of an RV bedroom.
RV King vs. Other RV Mattress Sizes
To understand the RV king, it helps to see it in context with other RV bed sizes.
- RV Queen: The most common RV bed size is 60″ x 75″ (Short Queen). This is 5 inches shorter than a standard residential queen (60″ x 80″).
- RV Full: Usually measures 53″ x 75″, which is shorter than a standard full (54″ x 75″).
- RV Twin: Often the same as a residential twin (38″ x 75″), but sometimes you’ll find shorter versions.
Why Are RV Mattresses Different Sizes?
RV manufacturers use space-saving dimensions for a few key reasons. The width of an RV’s living area is limited by road laws, so bedrooms are often narrower. A shorter length also helps fit the bed between walls or in a slide-out room more efficiently. Every inch counts when designing a vehicle’s floorplan.
How to Measure Your RV for a New Mattress
Don’t rely on labels or assumed sizes. Follow these steps to get your exact measurements.
- Empty the Space: Remove all bedding, mattress toppers, and the existing mattress.
- Measure the Platform: Use a metal tape measure for accuracy. Measure the width and length of the wooden or metal bed base. Measure at the front, middle, and back, as platforms can be slightly uneven.
- Note Obstructions: Look for permanent obstructions like walls, trim, or slide-out mechanisms. Measure how much clearance you have from the platform edge to any obstruction.
- Check Corner Shapes: Many RV bed platforms have rounded or cut-off corners to fit the vehicle’s curvature. Note the shape and dimensions of these cutouts.
- Consider Height: Measure the vertical space from the platform to any overhead cabinets. A thicker mattress might not allow cabinet doors to open.
Understanding Mattress Thickness
RV mattresses often range from 6 to 12 inches thick. Thinner mattresses (6-8 inches) are common in cheaper RVs to save weight and space. A thicker mattress (10-12 inches) usually offers better comfort and support, but you must ensure it doesn’t interfere with cabinets or feel too high to climb into.
Types of RV King Mattresses
Once you know your size, you need to choose the material. Each has pros and cons for life on the road.
Memory Foam
Memory foam is a top choice for RVs. It contours to your body, reducing pressure points. It’s also excellent at motion isolation, so you won’t feel your partner moving. Most importantly, it can be compressed and rolled for easier installation through narrow RV doors. Just be sure it’s high-density foam for durability.
Innerspring
Traditional innerspring mattresses provide a bouncy, familiar feel. However, they are heavy, can transfer motion, and may develop squeaks from road vibration. They are also rigid and can be very difficult to maneuver into an RV bedroom.
Latex
Latex mattresses are responsive, supportive, and naturally hypoallergenic. They are heavier than memory foam but offer great durability. Like memory foam, many latex models can be shipped compressed for easier setup.
Hybrid
Hybrids combine coils with foam or latex layers. They aim to give you the best of both worlds: support and pressure relief. Check the weight and flexibility, as the coil unit makes them less flexible than an all-foam bed.
Air Mattresses
Customizable air beds are popular for their adjustable firmness. High-end models with separate chambers let each sleeper set their own side. They are lightweight but require a power source for the pump and carry a risk of leaks.
Key Factors to Consider Before Buying
Choosing the right mattress involves more than just size and type. Keep these factors in mind.
- Weight: Every pound matters in an RV. Foam mattresses are generally lighter than innerspring or hybrid options. Check your RV’s weight capacity.
- Ventilation: RVs can have moisture issues. Look for mattresses with breathable covers or gel-infused foams that sleep cooler.
- Edge Support: Good edge support is helpful in a smaller space, as you often sit on the edge of the bed to put shoes on.
- Off-Gassing: Compressed foam mattresses can have a chemical smell when first unpacked. Look for CertiPUR-US® certified foams, which have lower emissions, and allow for ventilation after unboxing.
- Warranty & Trial: A good warranty (at least 10 years) is a sign of quality. Some companies offer sleep trials, which is valuable for such an important purchase.
Installation Tips for Your New RV Mattress
Getting a new mattress into your RV can be a puzzle. Here’s how to do it.
- Choose a Compressed Mattress: For kings and queens, a “bed-in-a-box” style compressed mattress is the easiest way to go. It can bend around tight corners.
- Clear the Path: Remove doors from their hinges if necessary. Take out any obstacles in the hallway.
- Use a Helper: Don’t try to manuever a large, floppy mattress by yourself. Have at least one other person to assist.
- Protect the Mattress: Wrap the mattress in a blanket or plastic to protect it from snagging on door frames.
- Allow Time to Expand: Once in place, unpackage the mattress and give it a full 24-48 hours to expand to its full shape and off-gas.
Custom vs. Standard Sizing
What if your measurements don’t match a standard RV king? You have options.
If your platform is slightly smaller than 72″ x 75″, a standard RV king might still fit if it’s a flexible foam model that can compress a little. If your platform is an unusual shape or size, many online companies specialize in custom-cut mattresses. You provide the exact dimensions and shape, and they build it for you. This is more expensive but ensures a perfect fit.
Caring for Your RV Mattress
Proper care extends the life of your investment, especially in the unique RV environment.
- Use a Mattress Protector: A waterproof, breathable protector is essential. It guards against spills, moisture, and allergens.
- Ensure Airflow: When parked for storage, prop the mattress up or leave a window cracked to prevent mold and mildew. Some RV bed platforms have slats for airflow; if yours is solid, consider drilling holes.
- Rotate Regularly: Rotate the mattress head-to-foot every 3-6 months to promote even wear. You usually can’t flip RV mattresses as they are single-sided.
- Clean Spills Immediately: Blot any spills with a clean cloth. Use a mild detergent with water for spot cleaning, and never soak the mattress.
Frequently Asked Questions (FAQ)
Is an RV king the same as a regular king?
No. A regular Standard King is 76″ x 80″. An RV king is typically 72″ x 75″, making it both narrower and shorter.
Can I put a residential king mattress in my RV?
It’s very unlikely. A residential king is too big for most RV bedroom spaces. It will not fit the platform and may block aisles or cabinets. Always measure first.
What is the difference between a short king and an RV king?
They are usually the same thing. The terms “Short King” and “RV King” both commonly refer to a 72″ x 75″ mattress.
Do all RVs use the same size king mattress?
No. While 72″ x 75″ is the most common, there can be variations. Some older models or specific brands might use slightly different dimensions. Measuring is the only way to be certain.
Where can I buy an RV king mattress?
You can buy them from RV dealerships, specialty online retailers (like Mattress Insider, Brooklyn Bedding), and some direct-to-consumer mattress companies that offer custom sizing. Major mattress stores rarely stock RV sizes in showrooms.
How much does an RV king mattress cost?
Prices vary widely based on material. You can find basic models for around $500, while high-end memory foam or latex custom mattresses can cost $1,500 or more. Consider it an investment in better sleep on the road.
Finding the perfect mattress makes a huge difference in your RV adventures. Knowing the answer to “what is the size of an rv king mattress” is just the starting point. By taking accurate measurements, considering your sleep needs and the RV’s limitations, and choosing a quality material, you can ensure many nights of restful sleep wherever you park. Remember, the goal is to wake up refreshed and ready to enjoy your journey, not stiff from a poorly fitting bed. Take your time with the research, and you’ll find the ideal mattress for your home on wheels.