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Mattress/Bed Sizes

Updated January 21, 2021

What Size is my Mattress?

Each mattress size is designed to fit a specific need. Factors like room size, how active of a sleeper you are, and whether or not you share a bed influence which size best suit your needs. Our mattress size information guide is here to help make your choice easier. So, what are the different mattress sizes and which one is right for you? Read through to find out.

See our Best Mattresses of 2021 article to see the top choice for any size.

See our list of the best mattresses in a box for more options.

show cm‚û¶show inches‚û¶
Size Dimensions Dimensions
King 76" x 80" 183cm x 203.5cm
Cal King 72" x 84" 183cm x 213.5cm
Queen 60" x 80" 152.5cm x 203.5cm
Full XL 54" x 80" 134.5cm x 203.5cm
Full 53" x 75" 134.5cm x 190.5cm
Twin XL 38" x 80" 96.5cm x 203.5cm
Twin 38" x 75" 96.5cm x 190.5cm

King (76" x 80")

The best King mattresses are designed for couples who love extra space while they sleep. Great for sharing a bed with an active or very light sleeper, king size beds provide plenty of space for one person to move without disturbing the other. Be sure to measure how much floor space a king will take up before buying one.

Read related article: What is a King Size Mattress?

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King Size
  • Designed for couples
  • Good for extra shoulder room
California King Size
  • Works for individuals or couples
  • Best for tall people over 6"2"

California King (72" x 84")

The California king size is 4 inches narrower than the standard king size, but it is also 4 inches longer over the king and queen size. Made for tall individuals and couples, this bed ensures that your feet won't hang over the edge of the bed.

Read related article: What is a Cal King Size Mattress?

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Queen (60" x 80")

As the most popular size, queen size beds have the suitable width for sharing and the length for most individuals. The queen size provides adequate space for most couples without taking up too much space in the room. If you're looking for a cost-effective and space-efficient bed, the queen size is the one you're looking for.

Read related article: What is a Queen Size Mattress?

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Queen Size
  • Designed for couples
  • Most affordable size for couples
Full Size
  • Designed for single sleepers
  • Wider than the Twin

Full (53" x 75")

Also known as a double, a full size bed is big enough for a single sleeper who wants something more spacious than a twin. Full mattresses work well for active sleepers and children/teens during their transition years.

Read related article: What is a Full Size Mattress?

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Full XL (53" x 80")

Full XL mattresses are 5 inches longer as the full with the same width. This size works well for tall, active sleepers who want the largest size intended for single person use. Full XL models cost the same as the couple-oriented queen size model.

Read related article: What is a Full XL Size Mattress?

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Full XL
  • Designed for single sleepers
  • Most spacious standard mattress size for single sleepers
Twin Size
  • Designed for single sleepers
  • Most affordable standard mattress size

Twin (38" x 75")

Twin size mattresses are the smallest and least expensive of the standard mattress sizes. The twin size works well for kids and adults who don't need a spacious sleeping surface and want extra room in the bedroom.

Read related article: What is a Twin Mattress?

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Twin XL (38" x 80")

Twin XL mattresses are 5 inches longer than the twin size with the same width. Popular in dorm rooms, twin XL mattresses are intended for tall individuals who are not active sleepers and want a mattress that won"t take up a lot of space in their bedroom. This size is recommended for growing teens or tall adults looking to save space and money.

Read related article: What is a Twin XL Size Mattress?

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Twin XL
  • Designed for single sleepers
  • Most affordable size for tall individuals
Custom Size
  • Custom width and length
  • Made to order

Custom Sizes

There are mattresses that exist outside of these seven standard mattress sizes. Custom mattresses are made to fit antique bed frames, RVs, and more. US-Mattress allows you to custom order mattresses to fit your sleeping needs.

Shop Custom Sized Mattresses

Please note: all mattress manufacturers work on a 1-inch tolerance (except Corsicana, they have a 2-inch tolerance). Dimensions listed above could be up to 1-inch shorter and/or narrower than specified.

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