Air Mattress Size Guide: Find Your Perfect Fit

Air mattresses have been a favorable product used by campers for more than 120 years. They are still a popular option today for those seeking a comfortable sleeping solution.

This complete guide to air mattress sizes will give you the tools to help you purchase the right air mattress, with information about measurements, portability, storage, and overall comfort.

Standard Air Mattress Sizes

Standard Air Mattress Sizes

Air mattresses are great for outdoor adventurers who love to camp in comfort. They are also a great option for homes with limited beds with guests staying over regularly – no one enjoys sleeping on a sofa!

Size is everything in the world of air mattresses, so let’s look at the four most common measurements.

1. Twin

A twin air mattress is fairly compact and measures approximately 39 x 75 inches. This smaller size is ideal for small spaces, single guests, and children.

2. Full

Full Size Air Mattress

A full-air mattress is the best size for those needing more space. The average measurements are 54 x 75 inches, so it’s a roomy, comfortable option for single adult sleepers or can accommodate two children.

3. Queen

The queen air mattress is undoubtedly the best option when you need a comfortable night’s sleep in an air mattress large enough for two people. Measuring 60 x 80 inches, it gives plenty of sleep space while still compact enough for easy storage and transportation.

4. King

King Size Air Mattress

The only option for ultimate luxury, space, and comfort is a king air mattress! Measuring a whopping 76 x 80 inches, this is a great option for families or couples wanting extra room.

Specialized Air Mattress Sizes

So, we have covered standard sizes, but what about those of us that have specific requirements or preferences? Let’s take a look at specialized air mattress sizes.

Twin XL

Twin XL Air Mattress

If you are happy to have the width of a smaller air mattress but need a little more length, a twin XL is an excellent choice. Unlike a standard twin, this option gives you an extra 5 inches to stretch.

Twin XL dimensions:

  • Width: 39 inches
  • Length: 80 inches

California King

The California King air mattress is the perfect choice for anyone craving space, even if they have to share. This option is 72 x 84 inches and great for taller people who struggle to find comfort in a regular king.

California King dimensions:

  • Width: 72 inches
  • Length: 84 inches

Custom Sizes

Custom Sizes Air Mattress

It can be difficult to find the perfect off-the-shelf air mattress that suits your personal needs and the needs of any guests that may be using it from time to time. So a custom-sized mattress might be the only option.

Custom sizes can be great for compact living spaces, oddly shaped spaces, and RVs. Check out our guide to the best RV mattress toppers.

Anything customized usually comes with a slightly higher price tag, and you may also consider the additional cost of customized bedding.

Size Dimensions and Measurements

It is important to know that the dimensions provided may differ slightly between manufacturers, so it’s always best to double-check before purchasing. 

For easy reference, here are the standard air mattress dimensions again:

Twin Air Mattress

  • Width: 39 inches
  • Length: 75 inches

Full Air Mattress

  • Width: 54 inches
  • Length: 75 inches

Queen Air Mattress

  • Width: 60 inches
  • Length: 80 inches

King Air Mattress 

  • Width: 76 inches
  • Length: 80 inches

Factors to Consider When Choosing a Size

When purchasing an item that you hope will last a good few years, several factors must be considered. Let’s look at the three main factors to contemplate when buying an air mattress.

Room Space

It may seem like an obvious point, but sometimes the space left around the mattress is overlooked, leaving little room for guests to maneuver around the bed or even leaving no space for you to comfortably inflate the mattress.

Lack of space or obstacles in the way of the air mattress can lead to the temptation of standing on it while making the bed up or inflating it, which can lead to punctures.


Suppose you are using your mattress for camping or overnight guests now and then. In that case, you should choose a smaller, more cost-effective option, such as a twin air mattress that can be stored easily.

Alternatively, suppose the mattress will be used regularly, and you have enough space to accommodate a king or California king air mattress. Why not go for that little bit of luxury? Paired with an indulgent feather mattress topper, it’ll rival the comfort of a hotel bed!

Number of Sleepers

You will want to consider the number of people sleeping on the air mattress at any time, firstly for comfort and secondly to avoid too much weight on the mattress.

Portability and Storage

Air mattresses are easy to store as well as being portable. The lightweight design allows them to fold into a compact size that is light enough for almost anyone to carry.

The beauty of an air mattress is that it can be inflated (and deflated) quickly and easily, with the majority of mattresses on the market today being sold with either an electric or a manual pump included.

Frequently Asked Questions

What are the dimensions of a queen air mattress?

A queen air mattress is typically 60 x 80 inches and provides ample room for two people seeking a comfortable night’s sleep.

How do single and twin air mattresses differ?

A single (or full) air mattress typically offers 9 extra inches in width than a twin mattress. This small amount of additional space can make a huge amount of difference. Both options tend to be 75 inches long.

What is the size of a king air mattress?

A king air mattress is the largest standard size on the market today and typically measures 76 x 80 inches.

What are the dimensions of a twin XL air mattress?

A twin XL air mattress is popular among taller individuals who require extra length for comfortable sleep. This size typically measures 39 x 80 inches instead of a standard twin, which is 39 x 75 inches.

What are the common sizes of air mattresses?

The most common air mattress sizes are as follows:

• Single: 30 x 75 inches 
• Twin: 39 x 75 inches 
• Full: 54 x 75 inches 
• Queen: 60 x 80 inches 
• King: 76 x 80 inches 
• Twin XL: 39 x 80 inches

Customizable sizes are available online if none of these common options fit your needs.

How many people can comfortably sleep on a full-size air mattress?

A full-size air mattress can accommodate two average-sized adults, although there may be more comfortable options. It’s a good size for two children sharing or a single adult who enjoys having space to move around.  If you are looking for an air mattress for two people, we recommend a queen or larger one.


In summary, air mattresses are a timeless, lightweight, portable sleeping solution that can be easily stored and inflated at a moment’s notice and customized to suit your specific wants and needs.

Hopefully, the information has helped guide you toward the perfect air mattress size for your unique needs.

Sarah Wagner

I'm Sarah Wagner, and I founded Sweet Island Dreams in 2022. It's a blog dedicated to helping people mental vacation virtually anytime they want. By providing information about the best sleep of your life, I help people drift away to paradise without ever having to leave their bed!