Queen vs. Full: What’s the Difference?

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Your mattress size has a big impact on how well you can sleep, and some people need extra room to stretch out or switch sleep positions in the middle of the night. Sleeping in a bed that is too small can lead to struggles falling asleep or staying asleep. 

Whether you’re going to be sleeping alone, sharing your bed with a partner, or co-sleeping with your children, size matters. The mattress size you choose is determined by several factors, including the size of your room. 

In this article, we’ll examine the differences between two popular mattress sizes, full and queen mattresses. A queen size mattress is 6 inches wider and 5 inches longer than a full size mattress. We’ll provide you with the dimensions for a range of mattress sizes to determine which is best for your room. To conclude, we’ll answer your mattress-related questions. 

What is a Queen Mattress?

Queen mattress dimensions are 60 inches by 80 inches, or 152 cm by 203.5 cm. When deciding if your room is big enough to fit a queen size mattress, you’ll need to be aware of the 2-foot rule. This rule states that you need to have at least 2 feet of open space around the perimeter of your bed. 

The extra space allows for better mobility and will hopefully prevent you from running into your bed in the middle of the night. Place your standard queen size bed in a room that measures at least 10 feet by 14 feet. 


There are many benefits to choosing a queen size mattress. A mattress of this size comfortably sleeps one to two adults. This makes a queen bed a great option for couples or those who sometimes co-sleep with their children.

If you have a spare bedroom and frequently have overnight guests, a queen mattress is a great choice. In this scenario, you won’t have to worry about your guest feeling cramped or having to sleep on a worn-out couch. 


While there are many upsides to a queen mattress, there are also some drawbacks. First is the cost of a queen mattress. A queen mattress can be as much as double the price of a full size mattress, depending on the mattress type. Latex beds, hybrid mattresses, and memory foam mattresses are just a few different types of popular mattress options. 

Some taller or larger framed sleepers report not having enough room in a queen size mattress when sleeping with a partner. In this case, you’d want to size up to a king or California king size mattress. Due to the size and weight of a queen bed, they can be awkward or difficult to move. 

What is a Full Mattress?

The dimensions of a full size mattress are 54 inches by 75 inches. Full beds are sometimes referred to as a double bed. When measuring in centimeters, the dimensions are 134.5 cm by 190.5 cm. According to the 2-foot rule, a double size mattress should be set up in a room that measures at least 10 feet by 12 feet.


The nice thing about full mattresses is that they can fit in compact spaces, apartments, or smaller spare bedrooms. Their lower weight and shorter design make these mattresses easier to lift and move. Because full mattresses are smaller, they are a lot less expensive than queen mattresses. 

Those who sleep alone will find that they have plenty of room on a full size mattress, which are ideal for older children, teens, and college students. 


There aren’t a lot of downsides to choosing a full mattress. Some larger framed and taller sleepers report not having enough space in this size mattress. In addition, most couples find that a full bed is too cramped to share. 

Other Popular Mattress Sizes

If your needs aren’t going to be met by a queen or full size mattress, don’t panic! There are plenty of other mattress sizes to choose from. Here are just a few of these mattress sizes. 


Twin mattresses are most commonly found in college dorms. Twin mattresses measure 38 inches by 75 inches (96.5 cm by 188.0 cm). A twin size mattress is great for children, single sleepers, and teens. Place your twin bed in a room that measures at least 7 feet by 10 feet. 

Twin XL

Like full size beds, twin XL beds are perfect for a compact room or studio apartment. A twin XL mattress measures 38 inches by 80 inches (96.5 cm by 203.5 cm). This mattress needs to be in a room that measures at least 9 feet 6 inches by 10 feet 6 inches. 


King size mattresses are a good choice for couples who require a lot of space. The dimensions of a king size bed are 76 inches by 80 inches (193 cm by 203.5 cm). It is best to place a standard king in a room that measures at least 12 feet by 12 feet. 

California King

Taller larger framed sleepers are best suited with a California king mattress. Cal king beds are longer than standard king beds, but they are narrower. This luxurious mattress measures 72 inches by 84 inches (183 cm by 213.5 cm). Your California king bed needs to be in a space that measures at least 12 feet by 12 feet. 

Factors to Consider Before Buying

There are a variety of factors that impact your mattress buying decision. Before you buy, take the time to consider these key factors.

  • Height/Size of Sleepers: Taller and larger framed sleepers need to step up to a bed with more space. For these sleepers, queen and king sized mattresses will be best. Smaller sleepers will be able to get by with a twin, twin XL, or full size mattress. 
  • Number of Sleepers: You’ll want to have a bed big enough to accommodate whoever you’re co-sleeping with. 
  • Price Point: For many consumers, price is the biggest factor in their buying decision. Queen mattresses can range in cost from $300 to $5000. The average queen bed costs $1500. A full mattress can cost anywhere from $250 to $2500. On average, most people spend $700 to $1000 on a full bed. 
  • Room Dimensions: Measure the space you want to place your bed in before buying. Make sure you have enough room to fit both your bed, bed frame, and headboard.
  • Ideal Sleeping Environment: How much space you need to sleep comfortably without feeling cramped depends on your personal preferences. Lie down on a few different size ones to see which has the right amount of space. 


Can a full mattress fit a queen size bed frame?

We do not recommend using the bed frame size that corresponds to the size of your mattress. A bed frame that is too big or too small for a mattress won’t provide adequate support. In this case, a queen size bed frame would be too big for a full size mattress. This may lead to mattress shifting or slipping at night. 

What is a full/queen?

Full queen sizing is used for bedspreads, sheets, or headboards. This size labeling appeals to a larger group of consumers who own either a full or queen size mattress. Full queen sized items fit both queen and full size beds. 

How do you turn a full bed into a queen?

There are two ways to turn a full bed into a queen. The first is by using a queen size bed frame and attaching a wall-mounted headboard. However, this isn’t the best option. 

Another way to expand your full bed is by attaching iron extensions to the side. The nice thing about extensions is they can easily be removed when you no longer need the extra space. 

Are there split queen mattresses?

Split queen mattresses are available in most mattress stores. Split mattresses are popular for couples who have different sleep and support needs. Each mattress in a split queen mattress measures 30 inches by 80 inches. You can pair your spit queen mattress with adjustable beds to personalize your sleep position and angle. 

Do two full mattresses equal a queen?

Two full mattresses do not equal a queen mattress. There isn’t enough of a size difference between a full and queen size mattress to do this type of size comparison. Two twin XL size mattresses equal a king size mattress. 


Both queen size and full size mattresses are great options for consumers. Which mattress you choose depends on your body size,co-sleeping, room size, and your budget. Those who sleep alone or are looking for a mattress for their children should choose a full size mattress. 

Taller sleepers or those planning to share their bed with a partner need to step up to a queen size mattress. Both mattress sizes offer a wide range of price points. How much your mattress costs will depend on the type and brand you go with. For those who need plenty of space, consider going with a king or California king mattress. 

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