Biggest Bed Size: Wyoming King, Texas King, and Alaskan King

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The regular king-size beds, the largest standard mattress size, are about 80 inches long and 76 inches wide. While this seems big already, bigger beds need a mattress bigger than regular king-size mattresses. 

Oversized mattresses may sound like a luxury to some, but several benefits to using one. Some people need a large bed to accommodate co-sleeping families. At the same time, others buy them because they’re uniquely tall and cannot comfortably sleep on regular mattresses. 

Below are the three biggest mattress sizes and where you can get them if you need them.

  1. Wyoming King
Wyoming King

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84-inch-wide by 84-inch-long

It’s almost absurd to refer to Wyoming king as small, but Wyoming king is the smallest mattress of all the oversized beds in this guide. It’s 84-inch-wide and 84-inch-long, making it just eight inches wide and four inches longer than the regular king-size mattress dimensions. 

Wyoming king beds are excellent for plus-sized spouses or families who love sharing a bed with one or two kids. The Wyoming king mattress is also not overly huge and can be used in most places where a regular king bed would be (about a 12 by 12-foot space).

Wyoming King 1

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Wyoming king mattresses typically range from $1,500 to $3,000 due to their size and the materials required for production, making many of their versions among the finest beds under $2,000.

Wyoming King 2

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  • It’s ideal for tall single individuals and makes an excellent mattress for couples
  • Suitable fit for large sleepers
  • It’s ideal for tiny co-sleeping families


  • Pricier than huge regular-size mattresses
  1. Texas King
Texas King 1

80-inches-wide by 98-inches-length

The Texas king, named after America’s second-largest state, is the second-largest oversized bed — it’s 80-inches wide and 98-inches long. And while the Texas king is thinner than the Wyoming king, it is 14 inches longer.

Texas king mattress can be an excellent pick for very-tall individuals, someone as tall as 78 (6.5 feet) to 84 inches (7 feet). With Texas’ dimension, individuals who are 78 inches tall would still have about 20 inches of additional room for their feet. 

Texas King

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Texas king mattresses costs range from $2,000 to $3,500, making them slightly more expensive than Wyoming kings. Texas kings can fit into smaller rooms, but you’ll need a space at least 14 feet long by 12 feet wide to accommodate this bed.


  • Perfect for very tall individuals
  • Ideal for families who don’t have large bedroom spaces


  • They are narrow
  • Not suitable for co-sleeping
  1. Alaskan King 
Alaskan King 1

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108-Inches wide by 108-inches length

The Alaskan king, named after America’s largest state, is the largest oversized mattress. The mattress has a dimension of 108 by 108 inches — bigger than other huge beds.

The Alaskan king mattress is 24 inches longer than the California king bed, the most extended average mattress, and 32 inches wider than The king bed, the broadest average mattress. It comes with several feet of excess area on both ends, to put this in context.

Alaskan King 2

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Alaskan king is an excellent choice for very tall individuals who need to stretch out because their feet will not protrude. Additionally, Alaskan kings can be a perfect choice for families with more than two children who want to share a bed.

The Alaskan king can comfortably accommodate three or four individuals. So, it can be the ideal mattress if you’re in a pinch and need to share a bed.

The Alaskan kings are expensive and cost between $2,500 and $5,000. Your bedroom needs to be at least 16 by 16 feet to fit an Alaskan king bed.

Alaskan King

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  • It’s ideal for large, co-sleeping families
  • Suitable for very tall people
  • Perfect for couples


  • It’s the most expensive oversized mattress 
  • It needs a considerable bedroom space to fit perfectly 

Where to Get Oversized Mattresses and Accessories

Where to Get Oversized Mattresses and Accessories

Large oversized mattresses or accessories such as bedsheets, frames, foundations, or comforters are generally not sold in regular stores. Instead, you can get them at specialty retailers who make the beds on demand. Additionally, the firms that sell oversized mattresses sell their accessories too. 

Usually, when you order a custom mattress, you can choose what the mattress is made of, and if you want to add any extra materials. You might want to look into an innerspring, hybrid, or memory foam mattress.

There aren’t many big mattresses, so the prices are quite high, ranging between $1,500 and over $5,000 in most stores.

Before buying a big mattress, ensure you have enough space in your room to accommodate it. A good rule of thumb is to ensure you’ll have at least 2 feet of space between three sides of the bed, excluding one against the wall. This will account for the walking area and fitting other furniture in your bedroom.

Frequently Asked Questions

What are the standard mattress sizes?

What are the standard mattress sizes

The following are the standard bed sizes:

  • Twin; measures 39 x 75 inches
  • Twin XL: measures 39 x 80 inches
  • Full/Double: measures 54 x 75 inches
  • Queen: measures 60 x 80 inches
  • King: measures 76 x 80 inches
  • California King: measures 72 x 84 inches

Some mattresses that don’t come in standard sizes are small single (cot), full XL, crib, toddler, and Olympic queen size mattresses. 

What’s a double king size bed?

What’s a double king size bed

A double king size mattress is the largest oversized mattress. It has a width of 152 inches, and a length of 80 inches — equivalent to four twin XL mattresses jammed together.  

This bed is extraordinarily huge, measuring 12 feet broad and possibly filling the length of regular bedrooms, if not more. Co-sleeping families with two to four children will find a double king bed ideal.

Is co-Sleeping okay?

Co-sleeping is okay, especially in families with infants or kids that are too scared to sleep alone. Co-sleeping or bed-sharing is when parents share beds with their kids or infants.

Initially, it was customary to share a big bed with your kids, but most parents prefer to sleep separately with the kids nowadays. Some parents still hold that co-sleeping with their kids helps them get to know them better. However, it has been reported that co-sleeping can increase sudden infant death syndrome (SIDS), although at lower rates. So, you should proceed with caution. 

What mattress size is good for couples?

We recommend at least a standard king or queen bed for couples, although the queen size mattress is not a perfect comfort alternative. If either or both of you is moderately tall, a Wyoming king or California king would be ideal from six feet and above. 

However, plus-sized couples and parents who co-sleep with their kids should choose Alaskan or Texas kings. If you and your partner have different sleep habits, you might want to pick one of these two mattresses since they minimise motion transfer from one end of the bed to the other.

What size bed should a 6-foot tall person get?

Oversized beds are suitable for tall people. But the averagely-tall individuals, six to 6.5 feet tall, can use mattresses at least 80 inches long. If you want a standard-size bed of at least 80 inches in length, you can use a twin XL, king, queen, or California king.


Most individuals won’t require an oversized mattress, but if you have a large co-sleeping family or are exceptionally tall, investing in a massive bed may be wise. 

When choosing one of the largest bed sizes, the most crucial consideration is that your bedroom has enough space to accommodate the large bed. 

They’re also pretty heavy and inflexible to carry, so ensure you’ll place it where you don’t intend to move it any time soon.

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Sarah Williams

Sarah Williams

We help customers with the latest and up to date sleep health information. If you are interesting in picking the best products for your home to assist with sleep we have you covered.

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