Standard Bed Sizes & Mattress Dimensions
Find the perfect fit!
Choosing the proper bed dimensions depends on the size of the room, your height and body type, and if you sleep alone or with others. From twin to California king, this guide highlights each bed size option so you can find the perfect one for your sleeping needs.
In this guide:
Bed Sizes & Dimensions
Frequently Asked Questions
Key Takeaways
- Know standard bed dimensions: The five standard bed sizes are twin (38" x 75"), full (54" x 75"), queen (60" x 80"), king (76" x 80"), and California king (72" x 84").
- Choose based on sleepers: Twin and full beds work best for solo sleepers or children, while queen and king beds offer more room for couples or those who want extra space.
- Consider height for California king: California king beds are narrower than a standard king but offer 4" more length, making them the best option for taller sleepers who need extra legroom.
Bed Sizes & Dimensions
There are five standard bed sizes to choose from: twin, full, queen, king, and California king. Use the bed size chart above to visualize how each set of dimensions stack up, and keep reading below to learn more about the bed dimensions in further detail.
Twin vs. Twin XL Bed Dimensions
Twin beds measure 38" x 75", while twin XL beds are 38" x 80".
Twin (or single) beds are designed for one person and are compatible with twin-size mattresses. Twin XL beds feature an additional 5" to stretch out your legs and use twin XL mattresses designed specifically to accomodate the extra bed length.
- Best for Kids & Teens: Their narrow frames make twin and twin XL beds a great choice for children, preteens, and teenagers. When most children outgrow their crib, they upgrade to twin beds.
- Space-Saving: Twin beds are also great space-saving options for shared bedrooms. Some sets of twin beds can also be assembled to create bunk beds, providing a fun experience for your kids and maximizing floor space.
- Ideal for Tight Spaces: Twin beds (especially twin XL options) are popular with adults where space is tight, like in guest rooms, dorm rooms, or small bedrooms.
Tip!
Standard daybeds are the same size as twin beds and typically use twin-size mattresses. Learn more in Your Guide to Daybed Sizes & Daybed Mattress Sizes.
Full or Double Bed Dimensions
A full bed (also known as a double bed) measures 54" x 75".
If you're ready for a bed that fits two people or gives you more room to stretch out, consider a full/double bed. On average, these beds are 54" x 70" – 75" and pair with full mattress sizes.
- Wider Than a Twin: Full beds are typically the same length as a twin, but provide almost 1.5x the width.
- Best for Solo Sleepers: Two people can sleep comfortably but compactly on a full or double. However, these beds are also deemed perfect for adult solo sleepers.
- Room to Move: If you like to sleep with a lot of blankets, pillows, or the company of a pet, there is plenty of space on a full bed.
Tip!
If you are unsure whether a full bed or a larger size is right for you, ask yourself these questions:
- Do you like to take up a lot of space when you sleep?
- Do you have a larger bedroom?
- Do you sleep with a partner?
If you said yes to these questions, you might be ready for a queen-size bed. Read Double Bed vs. Queen Bed: What Are the Differences? for an in-depth comparison.
Queen Bed Dimensions
A standard queen bed measures 60" x 80".
Queen beds are by far the most popular bed option because of their comfortable size and spaciousness. They are compatible with queen-size mattresses, fit well within primary bedrooms, and are wide enough for partnered sleeping.
- Widely Available: Due to their popularity, you can expect to find a large variety to choose from at affordable prices.
- Smaller Than a King: If you love the value of a queen, but find it a little small for your primary bedroom or a little too cramped for your growing family, consider the next size up: a king bed.
King Bed Dimensions
A standard king bed measures 76" x 80" (or 6'4" x 6'8").
King beds are the second-most popular bed size because they provide plenty of sleeping room for up to two adults. Standard king beds are 76" x 80" and designed to fit king-size mattresses.
- Ideal for Couples: If you sleep with a partner and find the 60" width of a queen bed too crowded, a king is the perfect solution. Although they're the same length as a queen bed (80"), their width of 76" is significantly larger than the queen.
- Undisturbed Sleep: The extra space that a king provides makes them great for sleeping comfortably with a partner next to you – you will hardly feel them tossing or turning in the night.
- Focal Point: The size of a king bed makes it the perfect centerpiece for large primary bedrooms.
- Customizable Split Options: If you and your partner have different sleeping needs, you can also opt for an adjustable split-king bed and a split-king mattress. Split king beds allow each person to have their own twin XL mattress that they can tailor to their sleep preferences. Check out What Is a Split King & Do I Need One? to learn more.
Tip!
Can’t decide between a king vs. queen bed? Read King vs. Queen Bed: Find the Right Fit for the pros and cons of each.
California King Bed Dimensions
A California king bed measures 72" x 84" (or 6' x 7').
California king beds are the largest bed size available. They pair with California king mattresses and provide a ample space for two people to comfortably sleep in.
- Extra Length: Sometimes, the California king bed is referred to as the "extra-long king bed." California king beds actually have a slightly smaller width than a regular king, but with several more inches of length.
- Best for Tall Sleepers: Their unique measurements make them a great choice for you if a king bed doesn't provide enough legroom.
- Luxury Pick: Overall, California king beds are extremely roomy and a luxurious option for any spacious bedroom.
Before you decide on a bed size, it’s important to ensure it will fit in your space. You should ideally try to achieve a 1:3 bed-to-room ratio, meaning the bed only takes up 1/3 of the floor space in your bedroom. While the structural features and layout of your bedroom will ultimately impact the size bed you can fit, here are the minimum room areas required for each bed size:
- Twin: 10' x 7' room
- Twin XL: 11' x 7' room
- Full/Double: 10' x 9' room
- Queen: 11' x 10' room
- King: 12' x 12' room
- California King: 14' x 12'
For a more detailed walkthrough of choosing the right bed dimensions, read How to Find the Right Bed Size for Your Space.
Tip!
With a size in mind, review Bed Buying 101: Types of Beds to find the right bed type and design for your bedroom. Need help choosing sheets that fit your bed? Reference our Guide to Bed Sheet Sizes.
Frequently Asked Questions
What are the dimensions of a queen size bed?
Queen-size beds are 60" wide by 80" long. This is the most popular size for couples.
What are the dimensions of a king size bed?
A king-size bed is 76" wide by 80" long, offering 16" more width than a queen.
What is the difference between king vs. California king?
California king beds are 4" longer but 4" narrower than a standard king. California kings are best for tall individuals, while standard kings are best for maximum width.
What is the size of a twin bed?
A twin bed measures 38" wide by 75" long.
Can a full bed fit two people?
While two people can technically fit on a full bed (54" wide), it offers only 27" of width per person. Most couples prefer a queen size for better comfort.
What is the most popular bed size?
Queen beds, measuring 60" x 80", are the most popular choice. They are small enough to fit average rooms but large enough to accommodate two sleepers.
What size bed should I get for a 10 x 10 room?
In a 10 x 10 room, choose a full bed (54" x 75") to maintain floor space or a queen bed (60" x 80") to prioritize sleeping space.
