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

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The regular king size mattress (the biggest standard mattress size) is 80 inches long and 76 inches wide. While this may sound big, the largest bed sizes are a few feet to several inches bigger than the standard king size mattress. 

Even though oversized mattresses appear unnecessary to many of us, they have benefits. Most individuals use these mattresses since they can accommodate co-sleeping, and they’re also ideal for uniquely-tall individuals.  

The exact bed you want depends on how you intend to use it. Taller than average individuals will focus on the length of the bed compared to their height, while for co-sleepers, it’ll depend on how many individuals the bed can accommodate. 

This article goes over the three largest bed sizes and where to get them if they tickle your fancy. 

The Wyoming King

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

Dimensions: 84 inches long by 84 inches wide

It sounds ridiculous to call the Wyoming king small; however, it’s the smallest out of the three beds listed in this article. It’s 84 inches long and 84 inches wide, making it 8 inches wider and 4 inches longer than the standard king size bed. 

Some mattress companies typically refer to this mattress as the emperor size mattress.

These mattresses are excellent for plus-sized individuals or families who want to co-sleep with one or two kids. The mattresses are reasonably large. Therefore, they can be placed in rooms where you’d use a regular king bed (typically a 12 by 12 room). 

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

Owing to their size and the number of materials needed to construct these mattresses, they usually go for between $1,500-$3,000, making them one of the best mattresses below $2,000. 


  • Ideal for uniquely tall or plus-sized individuals and couples
  • Excellent for co-sleeping families


  • More costly than regular large mattresses

The Texas King

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

Dimensions: 98 inches long by 80 inches wide

This is the second-largest mattress, named after Texas’s second-biggest American state. The Texas king is 98 inches long and 80 inches wide. Therefore, this mattress is narrower than the Wyoming king, but it’s 14 inches longer. 

The Texas king is an excellent choice for tall individuals if a California King bed or a king isn’t cutting it. In this regard, a tall person is at least 6.5 to 7 feet tall. Someone who is 78 inches (6.5 feet tall) will have 20 inches of extra foot room. 

These mattresses are more expensive than Wyoming kings and cost between $2,000 to $3,500. These beds fit in narrower rooms. Nevertheless, your room ideally should be at least 14 feet long and 12 feet wide to fit this mattress. 

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


  • Ideal for tall individuals
  • Perfect for houses with narrower but longer rooms


  • It’s narrow
  • It isn’t ideal for co-sleeping as it doesn’t accommodate more than one child.

The Alaskan King

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

Dimensions: 108 inches long by 108 inches wide

This mattress is named after Alaska — the largest American state — since it’s the biggest oversized mattress. The Alaskan king is 108 by 108 inches, much bigger than other big mattresses. 

This mattress is 24 inches longer than the California king, the longest regular bed, and 32 wider than the king, the widest regular bed. This means several feet of extra room on both ends of the bed. 

The Alaskan king is ideal for very tall individuals who need to stretch while sleeping since there’s no chance that their feet will stick out. The beds are also an excellent option for families who want to co-sleep with more than two kids. 

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

This mattress can also accommodate three to four adults comfortably. 

Since these mattresses are so big, they go for between $2500-$5000. Your bedroom should be 16 by 16 feet to fit this mattress. However, many master bedrooms are typically smaller than this. 


  • Ideal for big, co-sleeping families
  • Perfect for very tall individuals
  • No partner disturbance


  • It’s costly
  • Requires a big master bedroom

Where To Buy Large Mattresses And Their Accessories

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

Regular mattress stores usually don’t stock large mattresses or accessories (comforters, sheets, foundations, or bed frames). Oversized mattresses are typically found at speciality boutiques or retailers that make every mattress to order. The stores that sell large mattresses sell complementary accessories too. 

With custom-ordering, one can generally choose which materials they want their mattresses to be made of—innerspring, memory foam or hybrid. 

Since large mattresses are uncommon, they are pretty expensive, and on average, they cost between $1500-$5000. 

Before purchasing any large mattress, ensure you have adequate room to accommodate it. There should be at least 2 feet of space between the three sides of the bed, except for the side against the wall, to account for walking and any other upholstery in the room.  

Frequently Asked Questions

1. What Are The Regular Mattress Sizes?

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

There are six regular mattress sizes, with the biggest being a king mattress and the smallest being a twin bed. The regular mattress sizes are as follows:

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

Some non-regular sizes you may encounter include toddler, crib, full XL, Olympic queen size, and cot (small single) mattresses.

2. What Is A Double King Size Mattress?

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

Double king-size beds are the widest large mattresses and are 80 inches long and 152 inches wide. That’s equal to 4 twin XL beds combined. 

A double king size bed is massive and will possibly fill the length of most rooms. These mattresses are excellent for co-sleeping families with around three or four kids. 

3. Is It Okay To Co-Sleep?

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

Most families like oversized beds since they facilitate co-sleeping. Co-sleeping or bed-sharing refers to when parents share the same bed with their kids or infants. 

Co-sleeping was common in the past; nowadays, it’s uncommon. Nevertheless, some families opt for bed-sharing to bond better with their kids. However, bed-sharing raises your toddler’s risk of SIDS ( Sudden Infant Death Syndrome); therefore, you should do it with caution. 

4. What’s The Ideal Mattress Size For Couples

Regular queen or king beds are the best options. If you and your spouse are tall (between 6 to 6.5 feet), a Wyoming king or California king offers additional foot room. 

Texas or Alaskan kings are ideal for plus-size individuals and families who co-sleep with their kids. These mattresses have minimal partner disturbance and are ideal for couples with different sleeping schedules as the motion transfer from one end to the other is minimal. 

5. What’s The Ideal Bed Size For A 6-Foot Tall Person?

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

Oversized mattresses are perfect for uniquely-tall individuals. People of average height (6 feet and below) should go for a mattress that’s 80 inches or longer. California king, Twin XL, Queen, and King mattresses are suitable regular-sized beds. 

Small single mattress sizes such as twin XL beds are ideal for tiny homes, bunk beds, and dorm rooms, while bigger beds are perfect for guest rooms and master bedrooms. 

Bottom Line

Most people don’t need large mattresses; however, they’re ideal for bed-sharing families and tall individuals. The main thing to remember when selecting an oversized bed is if there’s adequate space in your room. These beds are cumbersome and challenging to transport; therefore, removing them may be challenging to get it out once it’s in house. 

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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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