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How Big Is an Alaskan King Bed?

An Alaskan King bed is the pinnacle of sleep luxury. It’s aptly named after the largest U.S. state, reflecting the abundance of space that no other sleep setup offers. But just how big is an Alaskan King bed? In this guide, we’ll dive into the details, compare Alaskan Kings to other size options, and help you decide if an Alaskan King is right for you.


Alaskan King Bed Dimensions 


An Alaskan King size bed measures 108 inches wide by 108 inches long, or 9 feet by 9 feet. These whopping dimensions make the Alaskan King the largest mattress size available. An Alaska King bed boasts 11,664 square inches in surface area—a luxurious sleep sanctuary for an entire family. 


Alaskan King Comparisons 


The Alaskan King’s gargantuan size makes it a sure fit for those who want as much sleep space as possible. However, it’s not the only oversized mattress available. Here’s how Alaskan Kings stack up against the other big beds you’ll encounter while browsing.


King Mattresses Size Chart

Alaskan King Bed vs. King Bed 


King beds are popular among couples who want more personal space than a Queen affords but don’t need extra room for children or pets. A standard King mattress is 76 inches wide and 80 inches long. By comparison, an Alaska king mattress is 32 inches wider and 28 inches longer. 


Alaskan King Bed vs. California King Bed 


California King mattresses are narrower but longer than standard Kings, making them ideal for taller sleepers or couples who sleep with a pet at the foot of their bed. They measure 72 inches wide by 84 inches long. With square dimensions, Alaskan King mattresses are 36 inches wider and 24 inches longer than California King size mattresses. 


Alaskan King Bed vs. Wyoming King Bed 


The mattress industry considers anything beyond the typical Twin through California King lineup an “oversized” bed. Of the oversized mattress sizes, the Wyoming King is the smallest. Wyoming King mattresses run 84 inches by 84 inches; this makes them 2 feet narrower and 2 feet shorter than Alaskan King mattresses. That said, you can still comfortably fit two adults and a child or pet on a Wyoming King bed. 


Alaskan King Bed vs. Texas King Bed 


Unlike Alaskan Kings, Texas King mattresses have rectangular dimensions. They measure 80 inches by 98 inches, 18 inches longer than they are wide. This makes Texas Kings perfect for big and tall sleepers. Compared to an Alaskan King bed, a Texas King bed is 28 inches narrower and 10 inches shorter. Two adults and two co-sleeping kids or pets can all fit on a Texas King.  


Alaskan King Bed vs. Alberta King Bed


The Alberta King (also known as a Vermont King) is one step down from an Alaskan King. The second biggest bed size spans 96 by 96 inches, 1 foot narrower and shorter than an Alaskan King. Two adults and three kids or pets can sleep on an Alberta King mattress without compromising personal space. 


Is There a Mattress Size Bigger Than Alaskan King?


No, there is no standardized mattress size beyond an Alaskan King—they’re the largest beds readily available in stores or online. However, some oversized mattress manufacturers allow customization and may have the means to craft a bed bigger than an Alaskan King. 


Who Is an Alaskan King Mattress Best For? 


Still on the fence about buying an Alaskan King bed? We’ve found that these lavish mattresses are best suited for the following lifestyles and sleeper profiles. 


Big and Tall Sleepers


For anyone who feels cramped on a standard King bed, an oversized mattress will come as a relief. With 9 feet of space in either direction, you can sprawl out freely, even if you share the bed. 


Couples Who Crave Personal Space 


An Alaskan King bed is the same width as two Full size beds side by side. For couples, that’s a wide expanse of personal space. You can both stretch out and move around as much as you like throughout the night. And if you have different sleep schedules, one of you getting in and out of bed won’t disrupt the other. 


Co-Sleeping Families


Bed-sharing families love the spaciousness of Alaskan Kings. An Alaskan King bed can sleep up to two adults and three to four kids, depending on their sizes and ages.


Pet Owners 


Everyone fits on an Alaskan King, including pets. From kittens to grown Great Danes, furry best friends of all sizes fit comfortably alongside single individuals, couples, or co-sleeping families in an Alaskan King bed. 


Lounge Lovers 


Beds aren’t all about sleep—they also create a comforting oasis for lounging, snuggling, reading, and TV or movie marathons. So even if you or you and a partner sleep alone most nights, you may still want an oversized bed for relaxation novelty. 


Luxury Bedroom Designers 


You don’t need to share a bed to relish its size. Beds also serve as furniture staples and the focal point of any bedroom design. With a bed as big as an Alaskan King, your bedroom will automatically have the grandeur and elegant feel of a five-star hotel. To accommodate an Alaskan King, you’ll need a room about 16 by 16 feet or larger.



Alaskan King Mattresses by Alaskan King Sleep


At Alaskan King Sleep, we offer a premium hybrid mattress meticulously designed for full-body support, responsive comfort, and maximum durability. Our Luxe Alaskan King Mattress has the elevated features that couples, co-sleepers, and luxury lovers need, like motion-isolating foam and cooling technology. You'll fall in love with every inch of your 11,664 square-inch bed.


 Luxe Alaskan King Mattress Specs: 


  • 13” tall
  • GlacioTex™ heat-dissipating cover 
  • Four foam comfort layers, including cooling gel swirl memory foam 
  • 8” individually-wrapped coils


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