Mattress Sizes


So, it’s time to buy a new mattress. Before you even begin to look for the perfect brand and model for your needs, there’s one big consideration to make: What size mattress is right for you?

Queen beds are the most popular by far, and for good reason. The size offers a versatile blend of adequate space, wide availability, and moderate pricing. But queen is only one of six common mattress sizes, and each version offers unique pros and cons.

This mattress size guide will take you step-by-step through the process of choosing a mattress size. We’ll start with a simple overview of each size, and move on to each consideration you’ll want to keep in mind while choosing. Let’s get started!

Mattress Size Dimensions Best For Pros Cons Price and Value
Twin 38” x 75” Children, teens, college students under 6’ tall
  • Affordable
  • Very easy to move
  • Good for children and teens
  • Easily outgrown
  • Not suitable for more than one person
The cheapest size across the board. However, many people will outgrow twin beds, so long-term value should be considered.
Twin XL 38” x 80” Teens, college students, single adults over 6’ tall
  • 5” extra legroom over standard twin
  • The same length as a queen
  • A better choice for single adults/students
  • Not suitable for multiple sleepers
  • Accessories, bed frames, etc. are less available and more expensive
Generally $100 or so more than a standard twin. However, accessories for twin XL can be more expensive (and harder to find).
Full (also called “double”) 54” x 75” Students and single adults under 6’ tall
  • A small step down from queen, at a lower price
  • Plenty of room for single sleepers; can also be used for couples in a pinch
  • Still cramped for couples
  • Not that much cheaper than a queen
$100-$200 cheaper than a queen, presenting a good value for single adults. However, full mattresses are less versatile than queens, so for many, a queen will be a better choice in the long run.
Queen 60” x 80” Couples
  • The most versatile and most popular size
  • Good for couples, guest bedrooms, and more
  • Spacious yet still manageable to move
  • Can still feel too narrow for some couples
  • Difficult to move in some situations
The most popular mattress size by far, and priced reasonably. Accessories are affordable and available everywhere.
King 76” x 80” Couples sharing the bed with children/pets and any couple who prefers ample space
  • Luxurious feel with a full 16” more width than a queen
  • Plenty of space to share the bed with a partner and small child or pet
  • Doesn’t fit well in all spaces
  • Can be very difficult to move
Generally $200-$300+ more than the price of a queen. Presents good value for couples who want more space; however, keep in mind that accessories will also be more pricey.
California King 72” x 84” Tall couples, and couples sharing the bed with an animal
  • Huge amounts of legroom
  • A good choice for those who share the foot of the bed with pets
  • Doesn’t fit well in many spaces
  • Difficult to move
  • Accessories are more expensive
Often priced the same as a king, but some manufacturers charge more. Accessories will be more expensive and harder to find.

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How to Choose a Mattress Size

Before choosing a mattress size, there are many points to consider. Some questions you should be asking yourself include:

1. Who will be using the bed?

First and foremost, consider who will be using the bed. If you share your bed with a partner, go with a queen or larger mattress to ensure you have a comfortable amount of space. If you are a single adult, a full is a good option. If you are buying a bed for a child or teen, twin or twin XL are budget-friendly choices.

2. How might things change in the future?

Before settling on a size, you’ll want to consider the versatility and future usefulness of the size you’re considering. For example, parents buying a new bed for children may want to consider a twin XL or a full instead of a standard twin, so that the bed will be useful for a long time. Single adults may wish to consider a queen instead of a full, to make room for future partners or pets.

3. What is your budget?

Larger mattress sizes will always be more expensive than the smaller sizes like twin and full. Odd sizes like twin XL and California king will also sometimes be more pricey than the more popular sizes like queen. Accessories for these less-popular sizes may also cost more and potentially be more difficult to find. While the cost of the mattress shouldn’t be your main consideration, it’s still something to keep in mind.

4. How tall are you, and in what position do you sleep?

When you think of mattress sizes, you likely think about the differences in width between each version. However, the differences in length are equally important to consider, particularly for tall people and back/stomach sleepers (most side sleepers sleep curled up, so legroom is less important). Twin and full size beds are only 75 inches (6 feet, 3 inches) long, which may feel cramped for taller people. Twin XL, queen and king all offer 80 inches of length, while California king offers 84 inches.

5. Do you have existing accessories you’d like to use?

If you already have a bed frame or foundation, sheets, comforters, etc. that you would like to continue using, consider which sizes you already have. While accessories like pillows are useful on any size, every other accessory is size-specific. If you already own a queen bed frame and queen bedding, it will be a significant cost-savings to go with a new queen mattress.

6. Where will your bed go, and how will you get it there?

Last but not least, it’s important to consider the placement of your new bed. How big is the room? Will a large mattress make the space feel cramped? Will a king size bed fit through the doorway, or up the stairs? These are all questions you should consider closely. We recommend measuring the bedroom you plan to use, and using the mattress size dimensions to estimate how each size would feel in your space. Ideally, you want to leave around 2 feet of room between the mattress and each surrounding wall/piece of furniture.

Once you answer these questions, the right mattress size for you should be more clear. If you still feel stuck, consider visiting a mattress store in your area just to get a visual feel for the size of each bed. And if you’re debating between two sizes, it’s often a wise decision to go with the larger option, as it will feel more spacious and be more versatile in the future. Happy mattress shopping, and sweet dreams!

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