At times we are compensated for the links you click at no cost to you. Learn more about why you should trust our reviews and view our disclosure page.
Are you sharing a bed with your partner and kids but it’s just starting to feel overly cramped? Or maybe you’re in need of a larger, oversized mattress to accommodate your towering height? In this article, we talk about the uncontested giant of modern mattress sizes, the Alaskan King size bed. And we’re excited to share the top three Alaskan King mattresses currently available on the market. The best Alaskan King mattress is the Big Mattress Premier.
Top Three Picks for Best Alaskan King Mattress
- Big Mattress Premier – editor’s choice
- Mattress Insider Alaskan King Bed Mattress – best cooling
- Big Mattress Classic – best for people with kids
#1. Big Mattress Premier
Check Current Price | Editor’s Choice
Pros:
- Adjustable firmness levels
- Available in both all-foam and hybrid versions
- Replaceable components
- Suitable for all sleeper types
- Great for co-sleeping
- Good motion isolation
- Offers pressure relief
- Cooling
Cons:
- Very steep price point
- Requires additional bedroom space
- Needs custom made sheets and bed frames
Big Mattress Co offers two versions for this high-end luxury mattress, an all-foam option, and a hybrid option. If you prefer a mattress that provides plush contouring and pressure relief, you should go for the all-foam version. But if you’re looking for a bed that’s a bit more responsive and supportive, we recommend the hybrid version for maximum comfort.
The Big Mattress Premier’s hybrid version also offers adjustable firmness levels which makes it suitable for all sleeper types. And on top of that, it is an oversized mattress that can fit couples as well as three or four children.
Who should buy the Big Mattress Premier?
- Couples who co-sleep with their children
- Tall sleepers
- All sleeper types
- Those who prefer oversized mattresses
- Those who need something bigger than California King beds
Firmness
Since the Big Mattress Premier has two different versions, you can select one or the other depending on your preferences. The all-foam version has a plush feel that’s around a 5.5 on the mattress firmness scale. While the hybrid version is much more versatile as its firmness can be customized through its numerous air pods.
Side sleepers will enjoy the soft cushioning that the all-foam version provides for their joints. Not unlike memory foam, it offers you a gentle conforming hug feeling that some back sleepers would also love. This foam is also great at isolating motion which makes it ideal for couples who want undisturbed sleep.
On the other hand, the hybrid version is more suited for back and stomach sleepers because of its added support. Moreover, combination sleepers will have no issues when switching positions because of the extra responsiveness this bed provides. Lastly, if you’re a heavier individual (over 250 lbs), this mattress can be adjusted all the way to extra-firm for your benefit.
Construction
The Big Mattress Premier is manufactured in the U.S. and is 13 inches tall in both versions. Its all-foam model is made with CertiPUR-US certified plush contouring foam that’s almost identical to memory foam. The main difference between the two is that the former offers less sinkage and does not give you that stuck in the mud feel associated with traditional memory foam.
Offering more support and responsiveness than the all-foam version, the Big Mattress Premier hybrid features adjustable air pods. This section acts as the bed’s primary support layer much like how coils provide support for other hybrid mattresses. Sitting on this air pod layer is the same CertiPUR-US certified plush contouring foam as the all-foam model. The combination of these two layers provide the Premier with a luxurious blend of soft comfort and stable support.
And as an added bonus, the Big Mattress Premier is made of replaceable components. This allows you to change layers of the mattress when wear and tear occurs to extend its life span.
All of this mattress’ layers are encased in a smooth and breathable cotton cover which aids in temperature regulation. This means that it helps to stay warm when you feel cold and it helps you stay cool when you feel hot. On top of that, the cover is also removable and machine-washable which is convenient in case accidental spills occur.
We did experience slight off-gassing with this mattress but it quickly dissipated within 24 hours of use in a ventilated room.
Sizes
In addition to an Alaskan King, the Big Mattress Premier also comes in 5 other sizes. It is compatible with most oversized bed frames as well as adjustable bases.
- Wyoming King
- Texas King
- Vermont King
- Family Bed
- Alaskan King
- Family Bed XL
Durability
Big Mattress Co offers a 100-night sleep trial for all their mattresses. The Premier is also backed by a 10-year warranty that covers structural defects. Shipping and returns are free as long as you reside within the contiguous United States.
Buy: Big Mattress Premier
#2. Mattress Insider Alaskan King Mattress
Check Current Price | Best Cooling
Pros:
- Multi-piece design
- Customizable firmness
- Suitable for all sleeper types
- Cooling
- Low motion transfer
- Responsive
- Strong edge support
Cons:
- Might be too costly for some individuals
- Can take up too much space
- Will need custom sheets and bed frames
The Alaskan King Mattress from Mattress Insider is one of the largest oversized mattresses available today. It’s ideal for families who need the extra space to accommodate several kids or even pets. Plus, it has a multi-piece design which allows you to customize the feel of your mattress by adding or removing its layers.
This massive high-end mattress might not be a viable choice for everybody, both space-wise and budget-wise. But its hybrid construction and distinct foam layers make it one of the best Alaskan King mattresses on the market today.
Who should buy the Mattress Insider Alaskan King Mattress
- Couples who co-sleep with their kids
- Tall sleepers
- All sleeper types
- People looking for a customizable mattress
- Those who prefer oversized mattresses
- Those who prefer hybrid mattresses
Firmness
Because the Mattress Insider Alaskan King Mattress has removable layers, you can customize your mattress to fit your needs. And don’t worry about the layers shifting because they are held together by the company’s own “zip in place” system.
This mattress’ firmness level ranges from 4 (Medium-Soft) to 7 (Firm) on the mattress firmness scale. Most individuals will easily find a suitable firmness level regardless of their sleeping position or body weight. The Alaskan King can also accommodate sleepers who weigh over 300 lbs. because of its supportive hybrid design.
Hot sleepers will love this bed’s cooling features such as its gel-infused memory foam and latex layers. The mattress’ coil system also aids in temperature regulation by promoting greater amounts of airflow than an all-foam bed. To add to that, the Alaskan King also contains convoluted foam which further aids in ventilation to keep you cool all night long.
The Alaskan King has pretty low motion transfer for a hybrid mattress, which is great if you sleep with a restless partner. It also boasts strong edge support which allows you to utilize the bed’s full surface.
Construction
The Alaskan King by Mattress Insider is 13.5 inches tall and it’s comprised of five layers including individually pocketed coils. The mattress is encased in an organic cotton cover that’s soft and cool to the touch. This cover is also removable and machine-washable for easy cleaning and maintenance.
Directly beneath the cover is a layer of adaptive gel memory foam that cradles your body and relieves pressure points. This layer also aids in temperature regulation as well as motion isolation. The section below this is made up of ventilated Talalay latex which adds responsiveness and promotes airflow.
Next up is a layer convoluted foam which adds both firmness and targeted support for your body. This foam has grooves and swirls which help provide additional airflow as well as pressure point relief. Beneath this lies an innerspring unit that’s made of individually pocketed coils which acts as the primary support layer of the mattress.
The coil system sits on a base layer that’s made of high-density polyfoam. This section adds extra firmness to the bed and provides a stable foundation for the layers above it. You can however, sleep on this layer if you’re a back or stomach sleeper that’s in need of firm support.
All the foams used in the Alaskan King Mattress are CertiPUR-US certified and are low on VOCs. We experienced minimal off-gassing upon unboxing this mattress and them smell quickly disappeared within 24 hours.
Sizes
Aside from Alaskan King Mattresses, Mattress Insider also offers other oversized beds such as Texas King mattresses and Wyoming King mattresses. The Alaskan King is compatible with most foundations including box springs and adjustable bases.
- Alaskan King
- Texas King
- Wyoming King
Durability
All models in Mattress Insider’s oversized mattress lineup are not eligible for the company’s 121-day trial period. This is due to the cost of labor and materials, and the fact that oversized mattresses are custom-made. Nevertheless, the Alaskan King Mattress does come backed by a 15-year warranty that covers structural defects. Shipping is free for all orders in the contiguous United States.
Buy: Mattress Insider Alaskan King Mattress
#3. Big Mattress Classic
Check Current Price | Best for People with Kids
Pros:
- Adjustable firmness levels
- Offered in both all-foam and hybrid options
- Replaceable components
- Ideal for co-sleeping
- Suitable for all sleeper types
- Great motion isolation
- Provides pressure point relief
- Cooling
Cons:
- Extremely high-priced
- May take up too much space
- Requires custom bedding
The second model from Big Mattress Co in this list, the Big Mattress Classic is the company’s flagship mattress. Studies in sleep science have shown that co-sleeping has positive effects for both parent and child. This mattress is one of the best models available that can fit an entire family and even a pet or two.
Available in both all-foam and hybrid versions, the Big Mattress Classic is suitable for a plethora of sleeper types.
Who should buy the Big Mattress Classic?
- People who co-sleep with their kids
- Couples
- Tall sleepers
- All sleeper types
- Oversized mattress fans
- Those who need a bed bigger than an Eastern King
Firmness
Oversized mattresses usually come in only one firmness level but that’s not the case for the Big Mattress Classic. You have the option of customizing its firmness level by adjusting the bed’s multiple air pods. In doing so, you will surely find a desirable mattress feel for your comfort regardless of your size and sleeping style.
The all-foam version of the Classic sits at a 6 out of 10 on the mattress firmness scale. This is just a touch softer than medium-firm and this is most suitable for side sleepers as well as light back sleepers. On the other hand, the hybrid model is ideal for back and stomach sleepers, along with plus-size sleepers weighing over 250 lbs.
If you’re looking for a mattress that has great motion isolation, then go for the all-foam version. But if you need a sleep surface that’s a bit more responsive, you should opt for the hybrid mattress. Both options are fantastic at providing pressure point relief to keep you free from pain or stiffness.
Construction
The Big Mattress Classic is also manufactured in the U.S. and is 11 inches tall in both versions. Like the other models in the Big Mattress lineup, the Classic features CertiPUR-US certified contouring foam for plush comfort. The hybrid version however, contains adjustable air pods in addition to pressure relieving foam.
Close in feel to traditional memory foam, the contouring foam used in this mattress gently hugs your body and cradles your joints. Sleepers who suffer from joint or muscle pain will appreciate this bed’s cushioning and pressure relief. If you’re a heavier individual, select the hybrid option so you’ll receive enough support to maintain neutral spinal alignment.
Compared to the all-foam version, the hybrid version is also better in terms of temperature regulation. So if you tend to sleep hot, you should opt for this version of the Classic as well. The bed’s mattress cover is also quite breathable and it’s machine-washable for your convenience.
Like the Premier, the Classic also features replaceable components to combat wear and tear and extend the longevity of the mattress.
The off-gassing odor released by this mattress was minimal and it dissipated after 24 hours.
Sizes
The Big Mattress Classic comes in 6 sizes, including an Alaskan King. It’s compatible with most bed bases and foundations as well as adjustable bed frames.
- Wyoming King
- Texas King
- Vermont King
- Family Bed
- Alaskan King
- Family Bed XL
Durability
The Big Mattress Classic comes with a 100-night sleep trial. It is also backed by a 10-year warranty that covers structural defects. Free shipping and returns are provided within the contiguous United States.
Buy: Big Mattress Classic
Alaskan King bed quick view and comparison
| Brands | Big Mattress Premier | Mattress Insider Alaskan King | Big Mattress Classic |
|---|---|---|---|
| Sizes | 6 | Customizable | 6 |
| Thickness (inches) | 13 | 13.5 | 11 |
| Feel | Soft to Firm | Soft to Firm | Soft to Firm |
| Motion Transfer | Minimal to none | Minimal | Minimal to none |
| Hybrid | Yes | Yes | Yes |
| Adjustable | Yes | Yes | Yes |
| Edge Support | Very good | Excellent | Very good |
| Sleeping Position | All sleeper types | All sleeper types | All sleeper types |
| Trial (nights) | 100 | n/a | 100 |
| Warranty (years) | 10 | 15 | 10 |
| Link to buy | Buy Big Mattress Premier | Buy Mattress Insider Alaskan King | Buy Big Mattress Classic |
What should be considered when buying Alaskan king mattresses?
There are a couple key factors to consider before purchasing oversized mattresses such as Wyoming King, Texas King, and Alaskan King beds. It’s also important to know that shopping for oversized beds is different than buying a standard mattress size model. To make an informed decision, make sure to think about the following points prior to buying a mattress.
- Budget – Perhaps the most vital thing to keep in mind is that Alaskan King-size mattresses cost significantly more than average-size mattresses. In addition, you will also have to spend more money for sheets, blankets, comforters, as well as an Alaskan King bed frame.
- Sleeping space – Does a California King bed or even a Wyoming King bed not offer enough space for you? You might be sleeping with your partner and more than two children. If that’s the case, then an Alaskan King or a Texas King bed could be the best fit for you. See our California king vs. Alaskan king size comparison for more details.
- Bedroom space – Is your bedroom spacious enough for an Alaskan King size mattress? It’s essential to have sufficient room for such a mattress so you’ll still have enough storage and living space. The recommended room size for an Alaskan King is 14′ x 14′.
Naturally, you also need to take into consideration the general factors for choosing a mattress. Some of which are: mattress types, sleeping positions, body weight, and health issues. Having said that, the three points I mentioned above are the major factors to consider when buying an Alaskan King mattress.
FAQs:
The Family bed measures 144″ x 80″ and it is much wider than an Alaskan King bed.
Yes, buying an Alaskan King mattress is definitely worth it especially if you co sleep with your kids. Although it is important to choose a good brand such as Big Mattress Co or Alaskan King Bed Company.
An Alaskan King bed’s dimensions are 108″ x 108″. That’s a whopping 9 feet by 9 feet.
Yes, an Alaskan King is much bigger than a California King. The former measures 108″ x 108″ whereas the latter is only 72″ x 84″.
A King bed measures 76″ x 80″ while an Alaskan King is an enormous 108″ x 108″ mattress.
How We Rate Mattresses
We rate mattresses using the following criteria:
- Comfort
- Structural integrity and durability
- Firmness and support
Learn more about our mattress rating process and methodology here.
Related product reviews:
Michelline loves nothing more than a cozy bed, with a stack of books at her side. She loves getting lost when she travels, can bake an entire British afternoon tea from scratch, is obsessed with all things analogue and does calligraphy on the side. She currently suffers from mild insomnia and is more than happy to be your guinea pig, so you won’t have to go through all the trouble of finding out what works best for you.
- Best mattresses with Affirm financing – data-backed performance tests - August 27, 2025
- Best mattresses – data-backed performance tests on 20+ brands - August 17, 2025
- Best mattresses without memory foam – hands-on performance test results - August 13, 2025
Psst… the sleep review industry is full of liars, sharks, and thieves. It’s a modern-day version of getting ripped off at your local mattress store. So, why should you trust us?