Guide To Mattress Sizes And Dimensions: Everything You Need To Know

Twin Mattress 

The most important aspect to consider when choosing a mattress is the height of the person who will sleep on it. Twin XL beds can give you up to 5 inches (0.13 m) more legroom than a twin, which can be a huge plus for someone who is particularly tall. For example, a twin mattress is 75 inches (1.91 meters) long versus 6 feet (1.83 m), 3 inches (7.62 cm) long. However, keep in mind that a pillow will take up some additional space, so you’ll need to make sure the pillow is tall enough to fit underneath. Besides being an ideal size for children, twin beds are also a great choice for those with limited space. 

Full size and dimensions 

If you’re buying a mattress for your bedroom, you’ll need to know the dimensions of a full-size bed. These mattress sizes in inches are 54*75, making them 16 inches (0.41 m) wider than twin-size beds. While full-size beds are a great choice for growing children, they may be too short for you if you’re tall. Here are the dimensions of a full-size bed: A full-sized bed has the same length and width as a double-sized bed. This is slightly longer than a queen-sized bed, which is also wider than it is long. You should also double-check the length of a full-size mattress before purchasing it. 

Queen size and dimensions 

If you want to find a comfortable bed, you need to know the measurements of a Queen bed. You should also know that a queen size mattress is not just the same size as a double bed, but is actually larger. 

When you’re looking to buy a queen size bed, you should have at least a ten-foot-wide bedroom. A queen size bed is 60 inches (1.52 m) wide by 80 inches (2.03 m) long. It is also slightly longer than a full bed. The headboard of a queen size bed is usually between 48 and 60 inches (1.52 m) tall, depending on the type of bed and the style. You can also look for a headboard in either one of these sizes. The size of the headboard also depends on your personal preferences. 

King size and dimensions 

You’ve likely wondered how to choose a bed, but you might be unsure of King size and dimensions. There are two types of kings, the traditional and California. The standard King is 72 inches (1.83 m) wide by 80 inches (2.03 m) long. It’s the largest bed size available and is ideal for couples, families, and people with big feet. 

You can also buy California king beds, which are narrower than standard kings. If you’re buying a bed for your master bedroom, you should be aware of its size and dimensions. In general, a king mattress requires a room that is fourteen feet by 19 feet (5.79 m). Depending on your needs, you can choose from split kings, California kings, and Alaska kings. 

California King size and dimensions 

If you’re planning on buying a new bed, you should know about California King size and dimensions. This king-sized mattress is a little narrower than the standard king, which is perfect for people who like to sleep close together. However, if you’re short or have a small child, you can opt for the standard king size. There are a few things to keep in mind when choosing between the two bed sizes. If you have a big master bedroom, a California king may be the right option. The size is 72 inches (1.83 m) long by 80 inches (2.03 m) wide. While the standard California king mattress measures around six feet eight inches, the Eastern king is smaller. That means it covers more area. If you are tall, a California king is the perfect bed size for you. You’ll be comfortable sleeping on it for a long time.

Which mattress is big based on size?

For those who need an extra-high mattress, there are California king and XL models. However, if you or your partner are over six feet and eleven inches, an oversized mattress may be the best choice. Compared to a California king, a Texas king mattress is significantly wider and longer, and the Texas mattress is the second-largest mattress.

These beds are also larger than the queen size, but are not suitable for single people. The Alaskan king, on the other hand, is larger than either a California king or a king bed. A California king is four inches longer and eight inches wider than a standard king, but is still smaller than a king-size bed.

Mattress buying tips

If you are considering purchasing a new mattress, you should consider some tips to make the process as hassle-free as possible. 

  • Firstly, you need to know your budget. 
  • Secondly, you should consider the quality of the mattress. 
  • Lastly, make sure that your mattress has sufficient life expectancy. The average person keeps their mattress for at least 10 years before replacing it. 
  • Size: Buying a new mattress can be an overwhelming experience. Mattress stores typically have a wide range of options, and many offer money-back guarantees or trial periods. Make sure to measure the mattress’ dimensions and decide on the size that will accommodate both of you comfortably. 


Before buying a mattress, it is vital to understand the size and shape of the bed. One sided mattresses are a bit different from double and queen sized mattresses. For one-sided mattresses, take your measurements from the center of the bottom side. As the top is not as flat as the bottom, it might be an inch or two shorter. Make sure to pay attention to the depth of your sheets.

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