Mattress Size Guide Choose the Right Size

Finding the right size for your mattress is crucial for ensuring comfort. Take a look at our comprehensive mattress size guide available at LA Mattress Store. Whether you're looking for a Twin, Queen, King or California King, we provide detailed dimensions to help you make an informed choice and enjoy a peaceful night's sleep.

Mattress Sizes and Dimensions Chart

Mattress Sizes Dimensions in Inches Dimensions in Centimeters
King 76" X 80" 193cm X 203.5cm
Split King 39" X 80" 99.5cm X 203.5
California King 72" X 84" 183cm X 213.5cm
Split Cal King 36" X 84" 91.5cm X 213.5cm
Queen 60" X 80" 152.5cm X 203.5cm
Split Queen 30" X 80"  76cm X 203.5cm
Full 54" X 75" 134.5cm X 190.5cm
Full XL 54" X 80" 134.5cm X 203.5cm
Twin 39" X 75" 96.5cm X 190.5cm
Twin XL 39" X 80" 96.5cm X 203.5cm
Small Single 30" X 75" 76cm X 190.5cm
Crib 28" X 52" 71cm X132cm

What mattress size is right for you?

Choosing the perfect mattress size can feel overwhelming, given the wide range of options available in the market. Each person has their own preferences, but understanding specific dimensions and your own expectations will definitely help you narrow down the ideal bed size that suits your needs. When deciding which mattress size to buy, several important factors come into play, such as the number of people sharing the bed and the dimensions of your bedroom.

Consider Your Sleeping Arrangements

Do you share your bed with a spouse or partner? Do children or pets often join you during sleep? These factors will influence your decision on the right mattress size. If you frequently have company in bed, opting for a larger size might be more appropriate to ensure everyone has enough space for a comfortable night's sleep.

Do Your Research

Being well informed is crucial to making an informed decision. Take some time to thoroughly research different mattress sizes and understand their respective benefits. Familiarize yourself with standard measurements for twin, full, queen, king and California king mattresses. This knowledge will give you confidence when it's time to make your purchase.

Standard Mattress Sizes

Most mattress companies typically provide customers with six different sizes to choose from; California King, King, Queen, Full, Twin and Twin XL.

California King Size Bed Dimensions

72 inches by 84 inches

Minimum recommended room size: 12 feet by 12 feet

Summary: California king size beds are crafted to offer you the additional length required, making them a great option if your feet have always dangled over the edge of a standard king size bed. By extending the overall length by four inches and keeping a broader width compared to a queen size bed, a California king mattress provides the ideal combination of space and comfort for an undeniably peaceful sleep.

A Cal King size can be an excellent choice for:

  1. Taller Individuals: California King mattresses are actually 4 inches longer than regular King mattresses, which makes them perfect for people who are taller and require that extra length to have a comfortable sleep.
  2. Couples: Similar to regular King mattresses, California King size mattresses offer ample space for couples, providing nearly the same amount of personal area as two twin XL beds combined.
  3. Bedrooms with a Narrow Layout: California King beds are a bit narrower and longer compared to standard King mattresses, which means they work well in rooms that have a more rectangular shape rather than being square.
  4. Luxury Sleep Experience: If you desire the ultimate in luxurious sleeping, the California King mattress size is an excellent choice as it is among the largest standard sizes available for purchase.
  5. Pet Owners: If you or your partner enjoy sleeping with pets, a California King size bed offers ample room for everyone to sleep comfortably.
  6. Families: If you have little ones who sometimes climb into bed with you, a California King size bed offers plenty of room.

King Size Bed Dimensions

Size: 76 inches by 80 inches

Minimum recommended room size: 12 feet by 12 feet

Summary: King size beds provide a generous amount of space, granting couples the equivalent of a twin XL mattress size each. To make it easier to bring a king size bed into a room, it is placed on top of two twin box springs that are pushed together. Although wider than California king size mattresses, king size beds are slightly shorter but still offer plenty of room for a peaceful and cozy sleep.

A King mattress can be the perfect choice for:

  1. Couples: King sized mattresses offer plenty of room for couples, providing the same amount of personal space as two Twin beds combined. This can be especially beneficial for couples in which one partner tends to toss and turn during sleep.
  2. Larger Bedrooms: A king sized mattress is perfect for spacious rooms as it not only fills up the space beautifully but also serves as a captivating centerpiece for the room.
  3. Families: A king sized mattress is perfect for parents who have young children that occasionally join them in bed. It offers the necessary space for everyone to be comfortable.
  4. Taller or Larger Individuals: A king sized mattress offers more space and comfort compared to a queen sized one, making it ideal for individuals who are bigger or taller.
  5. Luxury Sleep Experience: If you're seeking a more indulgent slumber, a king sized mattress provides ample space for stretching out and enjoying a luxurious sleep experience.
  6. Couples with Pets: A king sized mattress is perfect for couples who enjoy having their furry friends sleep comfortably at the bottom of the bed. It offers ample space for everyone to stretch out and relax.

Queen Size Bed Dimensions

60 inches by 80 inches

Minimum recommended room size: 10 feet by 10 feet

Summary: Queen sized beds have become incredibly popular due to their versatility as a bed size. They offer plenty of space for a comfortable sleep and can fit perfectly even in smaller bedrooms, which is why they are a favorite among many people. With a queen bed, you can enjoy the best of both worlds. The comfort you need without sacrificing valuable space.

A Queen mattress can be the perfect choice for:

  1. Couples: Queen sized beds offer plenty of room for two adults to sleep comfortably without occupying excessive space in the room.
  2. Single adults who value space: If you like having more space to stretch out while sleeping, a queen mattress offers more room to move around compared to a full or twin mattress.
  3. Guest rooms: A queen sized bed offers a cozy and lavish sleeping area that can comfortably accommodate up to two guests, making it an ideal choice for visitors.
  4. Master bedrooms: A queen sized mattress is typically a great choice for spacious bedrooms as it offers a harmonious blend of relaxation and opulence.
  5. Individuals who share their bed: If you frequently find your children or furry companions joining you in bed, a queen sized bed offers ample space for everyone.
  6. Tall individuals: A queen size mattress, measuring 80 inches in length, provides ample space for taller individuals to sleep comfortably.

Full Size Bed Dimensions

54 inches by 75 inches

Minimum recommended room size: 9 feet 6 inches by 10 feet 6 inches

Summary: Full size mattresses are a great middle ground between twin and queen size options. They're perfect for individuals who sleep alone, as they provide ample space while still being suitable for guest bedrooms. Enjoy the flexibility of a full bed size, offering comfort for solo sleepers and convenience when accommodating guests.

A Full mattress, also known as a Double mattress, could be an excellent choice for:

  1. Single adults: A full size mattress provides ample room for a single adult to sleep comfortably. It offers more space compared to a twin or twin XL mattress, which is ideal for adults who tend to shift positions during their sleep.
  2. Teenagers: As kids enter their teenage years, they often require more room than what a twin mattress can offer. That's where a full sized mattress comes in handy, providing that extra space they need.
  3. Smaller master bedrooms: If you and your partner have a smaller bedroom, opting for a full sized mattress can offer a cozy and restful night's sleep without occupying excessive space.
  4. Guest rooms: A full size mattress provides a cozy sleeping space for one or two individuals, making it a flexible option for accommodating guests in a spare room.
  5. Smaller apartments or studios: If you happen to reside in a small living area, opting for a full sized mattress ensures a nice blend of comfort and optimal utilization of space.
  6. Daybeds or sofa beds: Some of the larger daybeds or sofa beds are specifically constructed to fit a mattress that is the same size as a regular bed.

Twin XL Size Bed Dimensions

38 inches by 80 inches

Minimum recommended room size: 9 feet 6 inches by 10 feet 6 inches

Summary: The twin XL mattress is a popular choice for college dorm rooms, offering extra length for students to stretch out while maintaining the same width as a standard twin size mattress. Although it's convenient to move due to its manageable size, many adults prefer larger beds once they have more space, as the twin XL can be a bit narrow for grown individuals.

A Twin XL mattress is typically needed by:

  1. Taller individuals: Twin XL mattresses are actually longer by five inches compared to regular twin mattresses, which offers additional leg space for taller teenagers or adults.
  2. College students: In many dorm rooms, you'll find Twin XL beds because they have dimensions that are space efficient and suitable for most adults.
  3. Individuals with small living spaces: Twin XL beds are narrow enough to fit in tight spaces, yet they provide enough length for most adults, making them perfect for small apartments or studios.
  4. Those who want a split king setup: A king sized bed can be created by placing two Twin XL mattresses next to each other. This arrangement enables couples to have varying levels of firmness or adjustable bases, catering to their individual preferences.
  5. Guest rooms: They are an excellent choice for guest rooms because they can comfortably accommodate people of different body types and heights, ensuring a good night's sleep for your visitors.

Twin Size Bed Dimensions

39 inches by 75 inches

Minimum recommended room size: 7 feet by 10 feet

Summary: Twin mattresses, which are also referred to as single mattresses, have a slim design that makes them perfect for fitting side by side in kids bedrooms or stacking as bunk beds. These compact beds are a popular choice among children, providing easy maneuverability and a space saving option for families with growing kids. Embrace the practicality and convenience of twin mattresses to ensure a comfortable and uninterrupted sleep experience.

A Twin mattress could be an excellent choice for:

  1. Children: A twin bed is a common option for children who are transitioning from a crib to a regular bed. It's the ideal size for their smaller bodies and will usually meet their needs until they reach their early teenage years.
  2. Single adults living in small spaces: Twin mattresses are a great option for adults who live by themselves in a compact apartment or studio, where saving space is really important.
  3. Guest rooms: They make for a great choice in guest rooms because of their small and convenient size.
  4. Daybeds, trundle beds, and bunk beds: Twin beds often utilize twin mattresses because of their smaller size and space saving qualities.
  5. Individuals with a tight budget: Twin beds are usually more affordable compared to larger sizes, making them a budget friendly option for individuals looking to save money.

Split Mattress Sizes

A split mattress size refers to a mattress that is divided into two separate sections, often used in adjustable beds or for accommodating different firmness preferences for couples.

Split Cal King Size Bed Dimensions

39 inches by 84 inches x 2

Minimum recommended room size: 12 feet by 12 feet

Summary: The Split Cal King Size Bed is a fantastic choice for couples who want a mattress that can be customized to suit their individual preferences. With its two separate mattresses, it offers the perfect combination of comfort and convenience. Whether you have an adjustable bed or simply value personalized sleep experiences, this mattress provides ample space and the utmost comfort for a peaceful night's rest.

A Split California King mattress might be the best choice for:

  1. Taller Couples with Different Sleep Preferences: A split California King bed consists of two separate mattresses placed next to each other, each the size of a Twin XL but longer. This setup ensures that both partners can have a mattress customized to their individual comfort needs, making it perfect for couples who prefer different levels of firmness or have specific requirements.
  2. Users of Adjustable Beds: A California King mattress that can be split is a great match for an adjustable bed base, which enables each side of the bed to move independently. This means that one partner can raise their side for reading or watching TV, while the other side can stay flat for sleeping.
  3. Couples with Distinct Health Needs: If one of the partners has certain health issues that require them to sleep with their head or feet elevated (such as acid reflux or circulation problems), the other partner can still sleep on a flat surface by using a split California King bed.
  4. Individuals who Disturb their Partner's Sleep: If one of the partners is prone to frequent movement or has different sleep schedules, a California King bed that can be split into two sections can help reduce sleep disturbances for the other person.
  5. Couples who Share their Bed with Pets or Children: The California King bed, with its additional length, offers more room at the end of the bed. This can be advantageous for couples who frequently have their pets or children snuggling up with them during sleep.

Split King Size Bed Dimensions

39 inches by 80 inches x 2

Minimum recommended room size: 12 feet by 12 feet

Summary: The Split King Size Bed is a great mattress choice for couples with different preferences. It consists of two Twin XL mattresses that can be adjusted and customized individually for optimal comfort. This design provides a personalized sleep experience without sacrificing space or convenience, making it an excellent option for couples seeking versatility and comfort.

A Split King mattress could be an ideal choice for:

  1. Couples with Different Sleep Preferences: A split king mattress is basically two Twin XL mattresses placed next to each other. This allows each person to select a mattress that matches their specific comfort preferences, whether it's the firmness level or the type of mattress (such as memory foam or innerspring).
  2. Users of Adjustable Beds:If you own a bed base that can be adjusted, opting for a split king mattress will enable each individual to control their side of the bed separately. This way, one partner can elevate their side for reading or watching TV while the other can remain in a flat position.
  3. People with Health Concerns: Some individuals with specific health issues may find a split king bed beneficial. For example, one person might require sleeping with their head raised to alleviate acid reflux, while the other person does not have this requirement.
  4. Individuals who Disturb their Partner's Sleep: If one of the partners often moves around or wakes up during the night, a split king mattress can help reduce the disruption for the other person.
  5. Couples with Different Schedules: If someone has a habit of staying up late or waking up early, a split king bed can enable them to get in and out of bed without disturbing their partner.

Split Queen Bed Dimensions

30 inches by 80 inches x 2

Minimum recommended room size: 10 feet by 10 feet

Summary: The Split Queen Size Bed is perfect for couples who have different sleep preferences as it offers versatility and personalized comfort. With two separate mattresses, this bed allows for independent adjustments, ensuring a harmonious sleep experience without compromising on space or individual comfort.

A Split Queen mattress might be the best choice for:

  1. Couples with Different Sleep Preferences: A split queen bed consists of two individual mattresses positioned next to each other, with each mattress being slightly narrower than a twin size. This setup provides the advantage of personalized comfort for both partners, making it perfect for couples who have varying preferences or specific needs when it comes to mattress firmness.
  2. Users of Adjustable Beds: A split queen mattress is a great choice when paired with an adjustable bed base, as it allows each side of the bed to move independently. This means that one partner can raise their side for activities like reading or watching TV, while the other side can stay flat for a comfortable sleep.
  3. Couples with Distinct Health Needs: If one partner has particular health issues that necessitate raising the head or feet while sleeping, such as acid reflux or circulation problems, the other partner can still enjoy a level sleep surface by using a split queen bed.
  4. Individuals who Disturb their Partner's Sleep: A split queen bed can be a great solution for couples who have different sleeping habits or tend to move around a lot during the night. It helps reduce any disturbances, ensuring that both partners can enjoy uninterrupted sleep.

Other Mattress Sizes

Finding these sizes can be more challenging, often necessitating custom mattress orders from manufacturers.

Full XL Size Bed Dimensions

54 inches by 80 inches

Minimum recommended room size: 9 feet 6 inches by 10 feet 6 inches

Summary: The Full XL bed size is great for taller individuals who might feel that a regular full size bed is too short. It offers the same width as a standard full bed but with added length, making it comfortable for single adults or taller teenagers. The dimensions of the Full XL fall between a full and queen size bed, making it suitable for those who need more legroom but have limited space for a wider mattress.

A Full XL mattress can be an excellent choice for:

  1. Taller individuals: Full XL mattresses, which are 5 inches longer than standard full size mattresses, are ideal for taller individuals who require extra legroom.
  2. Single adults: A full XL sized bed offers plenty of room for one person to sleep comfortably while still leaving enough space in the bedroom, particularly for those who prefer more room or tend to move around a lot during sleep.
  3. Guest rooms: A Full XL mattress is designed to provide ample space for taller individuals, guaranteeing a pleasant and comfortable experience during their stay.
  4. Individuals transitioning from a twin or standard full mattress: If you're looking to switch from a twin or regular full size mattress and require more length but lack the space for a queen or king, a Full XL is an excellent choice.
  5. Daybeds or Sofa Beds: Some bigger daybeds or sofa beds have the capacity to accommodate a Full XL mattress size, which offers a more spacious sleeping area for guests.

Small Single Size Bed Dimensions

30 inches by 75 inches

Minimum recommended room size: 7 feet by 10 feet

Summary: The Small Single Size Bed is a compact and efficient mattress that is perfect for those who sleep alone, especially children or young adults. It's an ideal choice for small bedrooms or guest rooms, ensuring a comfortable and refreshing sleep experience.

A Small Single mattress can be an ideal choice for:

  1. Young Children: If you have kids who have grown too big for a crib mattress but aren't quite ready for a bigger bed, getting them a small single mattress can be a great middle ground option.
  2. Individuals with Limited Space: Narrow single mattresses are perfect for people with limited space, such as those living in small bedrooms or studio apartments.
  3. Guest Rooms: If your guest room happens to be on the smaller side, you may consider opting for a compact single mattress. This way, you can provide a comfortable sleeping option without sacrificing valuable space.
  4. Trundle Beds: Trundle beds are commonly equipped with small single mattresses, making them ideal for accommodating guests or hosting sleepovers for children.
  5. Cabin or RV Beds: Small single mattresses are often a great option for cabin, caravan or RV beds where space is limited due to their compact size.

Crib Size Bed Dimensions

28 inches by 52 inches

Summary: A compact and typical bed created specifically for babies and young children, usually measuring around 28 inches in width and 52 inches in length. It offers a secure and cozy sleeping area for infants during their early stages of development.

A crib mattress is essential for:

  1. Infants and Toddlers: Crib mattresses are specially crafted for infants and young children. They are created to perfectly fit into cribs and toddler beds, ensuring a secure and cozy sleeping space.
  2. Parents Prioritizing Safety: Cribs and crib mattresses are created with the utmost concern for safety. They adhere to rigorous regulations aimed at minimizing the possibility of suffocation and Sudden Infant Death Syndrome (SIDS). For instance, crib mattresses are intentionally designed to be firmer than adult mattresses, ensuring that infants do not sink into them.
  3. Families with Limited Space: Babies cribs and crib mattresses are designed to be smaller than regular beds, which makes them a great choice for families who have limited space available.
  4. Parents Preparing a Nursery: Setting up a nursery for a new baby involves an essential component; the crib mattress.
  5. Parents Transitioning a Toddler: When a young child becomes too big for the crib but is not quite ready to transition to a bed using a crib mattress, in a toddler bed can provide a better and more suitable fit.

Frequently Asked Questions

What distinguishes a twin mattress from a single mattress, and how do their dimensions compare?

The terms "twin". Single" are used interchangeably to describe mattresses of the same size. In the United States a "twin" mattress is typically 39 inches, by 75 inches while in countries it may be referred to as a "single" mattress. However regardless of location or wording a mattress measuring 39" x 75" is universally recognized as the size for one person to sleep comfortably.

What is the difference between a full-size bed and a double bed, or are these terms used interchangeably for the same mattress size?

Sure! When it comes to sizes, "full size beds" and "double beds" essentially refer to the thing. Both terms describe mattresses that measure 54 inches by 75 inches. While the term "double" may give the impression that its twice the size of a mattress it's actually only 15 inches wider while maintaining the same length. Nowadays most mattress manufacturers use the term "full ". Both names are still used interchangeably. The standard dimensions, for this size remain consistent. At Mattress Firm you can also find futons of varying thicknesses that are specifically designed to fit on a full size bed frame.

Can a full-size bed comfortably accommodate two people, and what are its dimensions in comparison to other bed sizes?

The suitability of a sized bed for two individuals depends on personal preferences and specific needs. A full mattress typically provides around 27 inches of space per person which's similar to the width of a crib. If you're considering a sized bed due, to limited space or budget constraints it's advisable to try it out with your partner and assess whether the slightly reduced personal space and length are acceptable. While shorter individuals may find it satisfactory taller people might consider the 54 inch width of the bed as insufficient. Keep in mind that mattresses come in sizes so it's crucial to prioritize the one that best meets your requirements.

What’s the most popular mattress size?

In the United States the queen mattress is widely preferred as it strikes a balance. It offers space for two people to sleep comfortably while also being convenient to move around tight spaces like narrow doorways and staircases. Moreover it presents a pricing option making it more affordable, than the pricier king sized mattresses.

What’s the largest mattress available?

If you think a regular king size mattress is roomy then the Alaskan king will truly exceed your expectations. Reputed as the mattress size out there the Alaskan king measures an opulent 108 inches in both width and length. With this size you and your partner can each luxuriate in 54 inches of personal space which is like having an entire full size mattress all to yourselves. If your room can accommodate grand dimensions the Alaskan king offers unmatched comfort and ample room, for stretching out.