what is the size of an RV King Mattress

What Is The Size Of An RV King Mattress?– Why It Matters

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Buying a mattress for your RV is one of the most important decisions that you will make regarding the interior decoration of your vehicle. Whether you regularly take out your RV on camping trips or you live full-time in your RV, you want to have a mattress that's comfortable, spacious and will guarantee you a good night's sleep. If you have enough space in your RV and you want the best possible mattress, you should know what is the size of an RV king mattress.

The RV king mattress is the largest size of mattress available for RVs.

Different Types of RV King Mattresses

When it comes to RVs, the king mattress is a blanket term, and you can't just order one without specifying the type of mattress. There are three types of RV king mattresses:

  1. Standard King Mattress - This is the most common type of king mattress for RVs. They measure 72 x 75 inches to 72 x 80 inches and can comfortably fit 2 adults. Most medium-sized and large RVs can fit a standard king mattress.
  2. Eastern King Mattress - This type of mattress is more commonly found as a built-in option for newer models, although you can find solo mattresses as well. Eastern King mattresses measure 76 x 80 inches, giving you a thicker mattress without losing any of the length. This type of mattress is best for people who want a thick and comfortable mattress.
  3. CalKing Mattress - The CalKing is not typically used for RVs because they are longer compared to other types of king mattresses. CalKings measure 72 x 84 inches and can take up a lot of room in an RV because of the added length. If you have an RV with a long room with limited width, you can consider using a CalKing mattress.

Benefits of Having an RV King Mattress

The main benefit of having an RV king mattress is being able to sleep comfortably even when you're on the road. Luckily for you, there are both built-in options as well as after market choices so that you can find the best type of king mattress for you.

King mattresses are particularly popular with millennials who love to travel as well as retirees who are looking to enjoy their golden years through traveling. The flexibility and mobility of an RV are attractive to these two groups of people, and having a king mattress ensures that they will still have the comforts of home while on the road. In fact, studies have shown that millennials are becoming the fastest-growing segment when it comes to RV owners.

In the past, there was a smaller market for king mattresses, and you might need to get a mattress custom-made to fit the dimensions of a particular RV model. However, you can easily find more choices on the market today, and technology and market demand have made even custom-made mattresses more affordable.

Types of Mattress Material

Here are the common types of mattress material that you can find:

Foam – the most common and affordable type of mattress material, foam mattresses are easy to clean, light, and easy to store. However, they are not very durable and do not offer much comfort compared to other types of mattress material.

Memory Foam – a special type of foam infused with gel to make it softer and more comfortable, memory foam mattresses are quickly becoming the most popular type of RV mattress. They are comfortable and do not retain body heat, but they are expensive. On the lower end, you will spend around $300 for a memory foam king mattress.

Coil – also known as innerspring mattresses, coil mattresses are strong and sturdy, offering more support and comfort compared to foam or memory foam mattresses. However, they are heavy and bulky and can add a lot of weight to your RV. What's more, the springs inside the mattress can rust over time.

Air – if you need a mattress that you can easily store away, the air mattress is the best option for you. You can adjust the firmness and thickness of the air mattress, and high-end models can even adjust mattress sides separately to accommodate the needs of the people sleeping on it. However, you need to be extra careful with air mattresses because they can lose structure over time.

Do I Need a Topper for my RV King Mattress?

If you are using a thin foam mattress or you just want extra support and comfort, you can consider adding a topper to your king mattress. The topper adds support and cushioning without adding too much weight or bulk to your mattress. What’s more, it’s easier to remove and clean the topper instead of having to clean the whole mattress.

Buyer’s Guide


When choosing your RV king mattress, you don’t only look at the size of the mattress and whether it will fit in your RV. You will consider the firmness of the mattress as well as the comfort that you will get from using it.


The firmness of the mattress is important, especially to people who need good back support. RV mattresses are known for being firmer compared to standard mattresses, so you need to consider this. Beds made from memory foam or with coils inside are firmer compared to air or foam mattresses.


If you're looking to save money, you might consider sacrificing comfort. However, there's no sense in saving a few bucks if you end up with a stiff neck or bad back every morning! While you won't be able to test out mattresses while buying them, you'll still have a good idea of how much comfort you'll get after a few minutes of lying down. Does the mattress give you the amount of support and cushioning you need or are you already shifting around, trying to look for a comfortable sleeping position?


So, let's go back to the original question in this article: what is the size of an RV king mattress? The simple answer is that there are three different sizes of king mattresses that can be used for RVs with different widths and lengths. Before you go out and purchase a mattress, make sure to measure that available space properly your RV has, otherwise, you might end up with a mattress that's too big for your RV!

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