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What are the Standard Bed Sizes?

All mattresses are definitely not created equal, so when you're looking to buy one, there are a few things you should keep in mind, so that you end up with what you really need.
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The new year is the perfect time to invest in a new mattress. When choosing a new mattress, there are several things you must think about- including the size. After all, your mattress can make all the difference in the quality of sleep you’re getting. The right one understands your needs, supports your body, and helps you sleep better.

The experts at Nothing But Beds will be happy to help you find exactly what you are looking for. We have two convenient locations: Murphy, NC and Andrews, NC. We have proudly served this area for 20+ years. We sell a variety of sizes to suit your needs and only offer high-quality, name-brand beds at affordable prices.

In this article, we’ll explain more about the standard bed sizes.

6 Standard Bed Sizes

Most mattress companies offer mattresses in 6 different sizes, which are easily accessible in most markets. When comparing mattress sizes, it’s important to understand the dimensions of each one. We’ll take a closer look at each one below, starting with the smallest.


Twin-size mattresses are 38” by 75” and the recommended room size is 7’ by 10’. This is the smallest standard size on the market. It is ideal for children and single people- but it is important to note that a twin-size mattress may not be ideal for adults, due to the size.

Twin XL

A twin XL-size mattress is 38” by 80”, which is 5” longer than a standard twin-size mattress, and the recommended room size is 9.6’ by 10.6’. A twin XL mattress is ideal for teens and makes a great guest bed- but can only accommodate one person.


A full-size mattress is 54” by 75”, and the recommended room size is 9.6’ by 10.6’. This size mattress is also referred to as a double bed. It is a popular option behind queen size. While smaller than a standard queen mattress, it can still accommodate two adults. Still, it may not be the best option for adults because it doesn’t leave much extra space. This can be an ideal size for singles, as it gives them extra space to stretch out.


A queen-size mattress is 60” by 80”, and the recommended room size is 10’ by 10’. It is 16” smaller than a king-size but is still a good size for a couple or for a single person with a pet or a child. It is also a good option for the guest room, as it can easily accommodate more than one adult. Queen mattresses are available in a split form, which provides more privacy if needed.


A king-size mattress is 76” by 80”- which is 4” wider and shorter than a California King, and the recommended room size is 12’ by 12’. This mattress is large enough to accommodate two adults and two children or pets.

California King

A California King is 72” by 84”, and the recommended room size is 12’ by 12’. This size mattress can easily accommodate two adults and a child or pet, making it ideal for families. The length of this mattress is ideal for taller people.

Other Sizes

You may also encounter other mattress sizes, including:

  • Olympic Queen
  • Full XL
  • Small Single
  • Crib

However, these are not typically readily available in stores and must be special ordered.

Tips for Choosing the Right Size

When choosing a mattress, there are several things to keep in mind when choosing the right size:

  • Occupancy: how many people will be sleeping in the bed on a regular basis?
  • Usage: who is sleeping on the mattress?
  • Price: what is your budget- how much are you willing to spend on a mattress?
  • Room size: what size is the room you are planning to put the mattress in?
  • Comfort: the softness/firmness matters when it comes to comfort- but the available space is also a factor.

Ready to Buy a New Mattress?

The new year is a great time to invest in a new mattress. At Nothing But Beds in Murphy and Andrews, NC, we have a team that is ready to help you find the perfect one. We have been in business for more than 20 years and have the experience and expertise to ensure that you are happy with your purchase for years to come.

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