Looking for a new mattress and want as much space as possible? Maybe you sleep hot and don’t want to be squished next to your partner. Or perhaps you have lots of pets who enjoy sleeping in the bed but it’s become much too crowded for comfort. Whatever the reason, there are large mattresses out there that can accommodate your needs. One of these sizes is Alaskan King.
But what is an Alaskan King mattress? How does an Alaskan King bed compare to a Texas King bed? Is an Alaskan King the biggest bed size? We answer these questions and more below.
How big is an Alaskan King bed?
An Alaskan King bed is 108 inches x 108 inches. It’s quite spacious! Because it is such a large mattress, it isn’t a readily available size, meaning it will be a little more difficult to find compared to a standard King mattress.
Is an Alaskan King mattress larger than a Texas King mattress?
Yes, an Alaskan King is significantly larger. A Texas King mattress is 80 inches wide x 98 inches long.
Is an Alaskan King mattress larger than a Wyoming King mattress?
Yes, an Alaskan King is bigger. A Wyoming King bed is 84 inches x 84 inches, making it quite a bit smaller.
Is an Alaskan King mattress the largest one on the market?
Yes, an Alaskan King mattress is considered the largest mattress when looking at established dimensions and standard sizes in the mattress industry. However, there are mattress companies that create custom mattresses based on their customers’ preferences, so technically you can have an even larger mattress made for you if the manufacturer is willing to honor your request.
How large does my bedroom need to be to fit an Alaskan King?
Your bedroom should be at least 16 feet x 16 feet if you want to be able to fit other furniture (such as a dresser).

Benefits of Choosing an Alaskan King Mattress
There are several benefits for those who have an Alaskan King size bed:
- Plenty of space so it is an excellent size for cosleeping with kids or pets
- Excellent for those who sleep hot and want space from their partner
- Accommodating for larger individuals (height & weight)
- Mattress won’t get lost in a spacious bedroom
Cons of Choosing an Alaskan King Mattress
While there are pros, there are of course negatives when choosing this mattress size.
- Hard to find this size so you may need to order a custom mattress, which comes with custom fees.
- When looking at mattress sizes in general, the bigger the mattress, the larger the price tag.
- More difficult to find bedding that fits.
- Cannot fit into most bedrooms.
- It may be more challenging to move from house to house due to its larger size.
Mattress Comparison Guide: Dimensions
Below are all standard mattress dimensions so you can quickly compare mattress sizes.
Twin: 38 inches wide x 74 inches long
Twin XL: 38 inches wide x 80 inches long
Full: 53 inches wide x 74 inches long
Queen: 60 inches wide x 80 inches long
King: 76 inches wide x 80 inches long
CA King: 72 inches wide x 84 inches long
Wyoming King: 84 inches wide x 84 inches long
Texas King: 80 inches wide x 98 inches long
Alaskan King: 108 inches wide x 108 inches long
Where can I buy an Alaskan King mattress?
We always recommend purchasing an organic mattress. While Savvy Rest does not offer Alaskan King as a standard option on their site, they do allow custom orders. Email info@savvyrest.com to submit your request today!
Not sure if Alaskan King is for you? You can shop all Savvy Rest mattress sizes here.