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Mattress Size Guide

When comparing mattress sizes, the primary measurements to consider are length and width. Please note that height/thickness varies by model and manufacturer, as each type of mattress is constructed differently. The width and length measurements for each size are standardized as shown in the table below, along with notes on their typical use cases.

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Mattress SizeDimensions (Width x Length)Notes
California King72" x 84"Ideal for tall individuals or couples, and narrow, long bedrooms
King76" x 80"Perfect for couples who want maximum space, large master bedrooms, or families with children/pets
Queen60" x 80"Suitable for couples, single adults who like extra space, and most master bedrooms
Full54" x 75"Good for single adults, guest rooms, and small master bedrooms
Twin XL38" x 80"Great for tall single sleepers, college dorm rooms, and adjustable bed frames
Twin38" x 75"Suitable for children, small guest rooms, and dorm rooms

Most manufacturers offer six standard mattress sizes (excluding cribs and toddler beds). For adults, choosing between these sizes is largely a matter of personal preference. However, these sizes can be broadly categorized into two groups: beds suitable for multiple users (such as couples, parents with children, etc.) and beds ideal for single sleepers. Below is a detailed visual comparison of each mattress size:

Mattress Size Comparison

Mattress Size Comparison

Mattresses for Couples & Families

When it comes to choosing a mattress for couples or families, the queen, king, and California king sizes are popular options. Each offers ample space for multiple sleepers, but they differ in their dimensions and best use cases. Consider your room size, sleeping habits, and any additional needs (like accommodating children or pets) when making your choice.

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FeatureCalifornia KingKingQueen
Dimensions72" wide, 84" long76" wide, 80" long60" wide, 80" long
Surface Area6,048 square inches6,080 square inches4,800 square inches
Best ForTaller couples; couples sharing a bed with a petCouples who prefer maximum space; couples sharing a bed with a childCouples without children or pets sharing the bed
Benefits
  • Extra length is ideal for tall people
  • Well suited for those who share the foot of their bed with pets
  • Maximum width is beneficial for couples and families with small children
  • Accessories are widely available
  • The most common mattress size, making accessories widely available & affordable
  • Easier to move than larger King beds
Drawbacks
  • It can be difficult to find accessories
  • The most expensive mattress size
  • Difficult to move
  • More expensive than the popular Queen size
  • Can make smaller rooms feel cramped
  • Difficult to move
  • Significantly less spacious than King/King XL
  • Will feel cramped for couples sharing the bed with small children

Beds for Single Sleepers

For individual sleepers, the full, twin XL, and twin sizes are often the most suitable choices. These sizes offer a balance between comfort and space efficiency, making them ideal for various situations from children's rooms to guest bedrooms. While a full size can accommodate two people in a pinch, twin and twin XL are designed primarily for single occupancy.

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FeatureFullTwin XLTwin
Dimensions54" wide, 75" long38" wide, 80" long38" wide, 75" long
Surface Area4,050 square inches3,040 square inches2,850 square inches
Best ForSingle adults under 6' tallSingle adults over 6' tall; teensSingle adults under 6' tall; children & teens
Benefits
  • Relatively spacious for single adults
  • Affordable
  • Versatile; could potentially be used for a couple or a guest bedroom
  • Ample legroom for taller people
  • Room for single sleepers to share their bed with pets
  • Same length as a Queen or King mattress
  • Very affordable
  • Accessories & bed frames widely available
Drawbacks
  • Nearing the price of a Queen, with much less space
  • Cramped for those over 6' tall
  • Accessories can be harder to find/more expensive
  • Not suited for couples
  • Not suited for couples
  • Can be outgrown

Mattress Sizes and Dimensions Chart

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Mattress SizeDimensions in InchesDimensions in Centimeters
California King72" × 84"183 × 213.5cm
King76" × 80"193 × 203.5cm
Olympic Queen66" × 80"167 × 203.5cm
Queen60" × 80"152 × 203.5cm
Full XL54" × 80"137 × 203.5cm
Full54" × 75"134.5 × 190.5cm
Twin XL38" × 80"96.5 × 203.5cm
Twin38" × 75"96.5 × 188.0cm
Small Single30" × 75"76.2 × 190.5cm
Crib27.25" × 51"69.2 × 129.5cm

Which Bed Size Is The Best For Me?

If it's time for a new mattress, you may be wondering which size is right for you. There are many factors to consider, like who will be sleeping in the bed, how much space you will need, how much room is in your bedroom, and any specific health or sleep issues you might face.

Buying a new mattress is not a one-size-fits-all situation, so it's essential to evaluate your individual needs. If you have a history of back pain or sleep problems, you may want a free trial period to help you make sure you're comfortable with your new mattress.

Who Will Sleep In the Bed?

Will you be sharing the bed with a partner? Do your children or dogs typically sleep with you? These are questions to ask yourself before deciding on mattress size. Typically twin, twin XL, and full mattresses are meant for one person. On the other hand, queen, king, and California king beds are a good bed size for couples and any children or pets that wander into the bed in the middle of the night.

If you are going to sleep with another person, consider how close you like to sleep. If you both enjoy stretching out when sleeping, the extra room afforded by a king or California king size will be appreciated—and help you avoid any accidental thwacks if your partner rolls over in their sleep.

Your Room Size

The amount of space available to you should also be considered. A larger mattress will take up more space in your bedroom, as will any other bedroom furniture, so you will need to plan accordingly.

To help you decide if there is ample space for the mattress you're considering for your room, here is a bed size dimensions chart in square inches and square feet:

  • Twin: 2,925 sq. in./20.3 sq. ft.
  • Twin XL: 3,120 sq. in./21.7 sq. ft.
  • Full: 4,050 sq. in./28.1 sq. ft.
  • Queen: 4,800 sq. in./33.3 sq. ft.
  • King: 6,080 sq. in./42.2 sq. ft.
  • California King: 6,048 sq. in./42 sq. ft.

Your Body Size

You should take your height and width into consideration when choosing a mattress. A typical twin mattress is 75 inches long, while a twin XL is 80 inches long. If an individual is taller than six feet two inches, a twin mattress is probably not for them. Instead, it's best to go with the XL, full, queen, or king bed, all of which can accommodate someone who is up to 6 feet 7 inches.

Your Sleep Position

When narrowing down your mattress size choices, consider how much space you'll need to comfortably move around while you sleep. Do you toss and turn like a cowboy riding a bronco, or do you more closely resemble a hibernating bear who doesn't move once you close your eyes?

Your Budget

The amount of money you are willing to spend on a mattress can also help you choose the right size. A king will cost more than a queen size, and a queen more than a full, etc. Buying a mattress that meets both your size needs and your financial needs is key.

Materials - The materials that manufacturers use to make their beds play a big role in deciding the final price of a mattress. For example, innerspring and all-foam mattresses are a more cost-effective option if you're on a budget. In contrast, latex and hybrid beds use more high-end materials and can cost twice as much but are more durable and provide ample comfort and support.

Summary:

Choosing the right bed size depends on various factors including the number of sleepers, room size, body size, sleep habits, and budget. Consider who will use the bed, available space, personal comfort preferences, and long-term needs. Whether you're a solo sleeper, a couple, or a family with pets, there's an ideal bed size for your situation.

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Customer Stories

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Kevin from Denver, CO

Perfect King Size Recommendation

"The smart recommendation tool was a game-changer! It suggested a king size bed based on my height and sleep preferences. The detailed size guide helped me understand why it was the best choice. Now, my wife and I have plenty of space, and I'm sleeping better than ever!"

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Sarah from Seattle, WA

Queen Size for Small Spaces

"I was torn between a full and queen size for my small apartment. The size comparison chart and room size guide were incredibly helpful. I went with the queen, and it fits perfectly! Thank you for making the decision process so easy and informative!"

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Mike from New York, NY

California King for Tall Sleepers

"As a tall person, I always struggled with beds being too short. The detailed size guide highlighted the benefits of a California King for taller individuals. I took the plunge, and it's been life-changing. Finally, a bed that fits me perfectly!"