Last Updated on October 22, 2021 by Emily Stevens
Width x Length, measured in inches
For perspective, 72″ = 6 feet
The exact mattress size can vary a little, it depends on the manufacturer. The size of the delivered bed could be perfect or it could be off by an inch or half an inch. Check how the bed manufacturer measures and defines the size of a “Twin” “Full” “Queen” or “King” size mattress before purchasing. It should be on their website.
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Need the exact size of a mattress before ordering? Many people do; that’s why we designed our bed size dimensions chart and guide for our visitors.
Quickly check the different bed sizes for Full, Queen, King, and California King with nine different bed sizes in total. Scroll down for more info on each of the canine bed sizes.
Need the exact size of a mattress before ordering?
Many people do; that’s why we designed our bed size dimensions chart and guide for our visitors. Buying online saves money, and most online mattress companies give buyers 100+ nights to try it out after buying!
Mattresses are kept for several years, and we often forget the measurements after buying the last one, or we wonder if a larger size will fit nicely in the bedroom. Use these handy measurements before you buy online.
The older traditional way of purchasing a mattress meant going to the store and checking the size.
But the trend today is ordering online and knowing the exact measurements is essential information for mattress buyers.
The differences between a King size bed and a California King can be explained easily with a chart.
Mattress Dimensions In Feet
| Bed Size | Width x Length in Feet |
| Small Twin | 2’5″ W x 6′.2″ L |
| Twin | 3′.1″ W x 6′.2″ L |
| Twin XL | 3′.1″ W x 6′.6″ L |
| Full/Double | 4′.5″ W x 6′.3″ L |
| Full/XL | 4′.5″ W x 6′.6″ L |
| Queen | 5′ W x 6′.6″ L |
| Olympic Queen | 5′.5″ W x 6′.6″ L |
| King Size | 6′.3” W x 6′.6″ L |
| California King | 6′ W x 7′ L |
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9 Individual Mattress Sizes
Below are the 9 individual bed sizes enlarged. We hope this makes your mattress shopping much easier.
Small Single 30″ x 75″
Suitable for babies and small children.
Twin 38″ wide x 75″ long
This is suitable for larger kids, teenagers, and single adults in small apartments. A mattress of this size is often used for bunk beds in ships, barracks, dorms, and guest rooms. For kids, there are no mattress sizes smaller except for a small single.
What parents need to consider is that when their children grow older, they’ll need to move them to larger rooms or beds, replace Small Single mattresses with Twin as Twin mattresses are made more comfortable. Comfort is paramount as sleepers get older.
Twin XL 38” wide x 80” long
There are single kids and adults that are larger and taller than usual, and these bed sizes should accommodate them perfectly.
Full 54” wide x 75” long
Also known as standard double, this is great for single toss-sleeping adults who require plenty of legroom, for single parents with children or single sleepers with pets on the bed, or for couples who don’t require much legroom or sleep in small quarters.
Full XL 54” wide x 80” long
Same as the above but with extra legroom for taller individuals or couples. This is for individuals who like to live largely. Often the choice for hotels that accommodate couples.
Queen 60” wide x 80” long
This is already excessive for single persons but perfect for most couples. This is often the choice for couples that don’t require much sleep space, sleep in smaller rooms, and/or have no plans to accommodate kids or pets in the short run.
Olympic Queen 66” wide x 80” long
Slightly wider than King Size. Good for couples with smaller kids or a pet in between. This bed type is also more suited for square rooms while the former is suited for rectangular rooms.
King Size 76” wide x 80” long
Also known as Eastern King, this is a quite substantial bed for couples with enough space for both to sleep comfortably and can accommodate a third person, often a child. This is a pretty large bed recommended only for rooms with a minimum dimension of 12’ x 12’.
King size is also recommended for couples with different mattress preferences (firmer or softer). A King size bed can accommodate two Twin XL mattresses in case the partners’ tastes differ. Waking up from a good night’s sleep can be seen as a factor in relationships.
California King 72” wide x 84” long
Also known as Western King, this type of bed is slightly longer and narrower than the standard King size. This bed is suitable for taller sleepers. Considering room dimensions, this bed would be perfect for more extended and narrower rooms.
One caveat of this type of bed is that it’s harder to accessorize with sheets and mattresses.
California King vs. King Size
King = Wider but not as long
California King = Not as wide but longer
Now that you know the correct bed sizes and the size you need buying a new mattress online or choosing a hotel to stay in should be much easier especially when it’s specified what type of beds are in their rooms.
The same goes for when purchasing a new home. New owners can consider taking or leaving their current beds or buying new ones altogether after knowing the dimensions of the bedrooms.
And then there’s planning for the future when building or renovating homes; owners can know what size the bedrooms should be according to the size of beds they prefer and who they’re intended for.
An individual can plan what beds need to be purchased if they want to stay single, enter into relationships, become married, and/or raise a family. And it also goes without saying, the right bed size, the correct amount of space, and legroom is essential in having a good night’s sleep.
Bed Size FAQs
What are the dimensions of a California King size bed?
California King bed is 72 inches wide x 84 inches long
What are the dimensions of a King size bed?
King Size Bed is 76 inches wide x 80 inches long
What are the dimensions of a Queen size bed?
Queen size bed is 60 inches wide x 80 inches long
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Emily lives in North Texas.
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