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When it comes to finding the perfect mattress, size matters. For those seeking maximum space to sprawl out in their sleep, the Alaskan king mattress stands out as a luxurious choice. In this comprehensive guide, we'll delve into what makes Alaskan king beds special, compare their dimensions to other mattress sizes, and provide shopping tips to find the best model for your needs.
The Alaskan king mattress—aptly named after the largest U.S. state—is the biggest mattress size you can buy without customization. An Alaskan king bed measures 108 inches wide by 108 inches long or 9 feet by 9 feet. They offer an impressive 11,664 square inches of sleep surface area. Other oversized mattress options include the Wyoming king, Texas king, and Alberta king, but the Alaskan king is the largest.
If you’ve never encountered an Alaskan king mattress, it may be hard to visualize its expansive dimensions. Use the charts below to envision the scale of an Alaskan king bed, compare it to your current mattress size, and determine if it'll fit your bedroom's parameters.
Size | Twin | Twin XL | Full | Queen |
California King |
King |
Width | 38" | 38" | 53" | 60" | 72" | 76" |
Length | 74" | 80" | 75" | 80" | 84" | 80" |
Surface Area |
2,812 sq. in. | 3,040 sq. in. | 3,975 sq. in. | 4,800 sq. in. | 6,048 sq. in. | 6,080 sq. in. |
Minimum Recommended Room Size |
7' x 9' | 7' x 10' | 10' x 9' | 11' x 10' | 12' x 12' | 13' x 12' |
Size |
Wyoming King |
Texas King | Alberta King | Alaskan King |
Width | 84" | 80" | 96" | 108" |
Length | 84" | 98" | 96" | 108" |
Surface Area | 7,056 sq. in. | 7,840 sq. in. | 9,216 sq. in. | 11,664 sq. in. |
Minimum Recommended Room Size |
14' x 14' | 12' x 14' | 14' x 14' | 15' x 15' |
Given its grandeur, an Alaskan king bed is a luxurious choice. However, there are a few drawbacks to consider before purchasing a mattress this massive. Anyone interested in an Alaskan king should weigh these pros and cons to make an informed decision about a mattress size upgrade.
We understand that an Alaskan king sleep setup is a big investment. Before adding a giant mattress to your online cart, carefully consider each factor below.
If you’re interested in an Alaskan king bed, you first need to determine if you have enough room. To comfortably accommodate the bed, additional bedroom furniture, and walkways, you’ll need about 15 feet by 15 feet of space or more.
How do you plan to use your oversized mattress? Alaskan kings make the ideal family bed for co-sleepers and pet owners. Two adults plus three to four children or pets can all fit on this giant bed.
Oversized mattresses may not be as common as the standard twin through California king sizes, but you’ll still have a handful of brands of models to choose from. To find your ideal fit, look closely at each model’s materials, layer count, firmness feel, and additional features while comparing your options.
Our Mattress Material Guide unpacks the most popular mattress types on the market: foam, latex, hybrids, and innerspring. When it comes to Alaskan king size mattresses, we strongly recommend hybrid builds for optimal comfort, support, and durability. Hybrid mattresses combine a coil core with foam upper layers to provide structural strength and pressure relief, which is exactly what you need for a long-lasting Alaskan king bed.
Regardless of the mattress size you choose, identifying the ideal firmness level for your sleep position, weight, and contouring preferences is essential for finding a comfortable fit that properly supports your spine. Head over to our Mattress Firmness Guide for help deciding between a plush mattress, a firm mattress, or something in the middle.
How much does an Alaskan king bed cost? On average, an Alaskan king mattress costs $5,800 if you order online.* Shop at Nolah and save! Click here to see the current deal on our Luxe Alaskan King Mattress.
At this point, you’re likely wondering: how do you transport and set up a bed this big? We can’t speak for other oversized mattress brands, but here’s how it works when you order an Alaskan king at Nolah.
We ship our Luxe Alaskan King Mattress FREE via FedEx in three compact boxes. Each parcel contains compressed components that you unpack and assemble into one luxurious mattress. You’ll receive easy-to-follow instructions and the following pieces: four mattress cores, one foam attachment, and one mattress shell. You’ll need two people to set up the mattress, but it’s quick and easy. Your bed will be sleep-ready after you let it expand for a few hours.
Don’t forget! If you’re changing mattress sizes, you’ll need a new foundation. Look for a base specifically made for an Alaskan king size mattress (108 inches wide by 108 inches long). We recommend a platform or slatted base design for maximum durability.
You’ll also need Alaskan king size bedding, like a sheet set and comforter or duvet. A mattress protector isn’t required but will go a long way to keep your mattress clean and safe.
With their staggering dimensions, Alaskan king beds redefine sleep luxury and personal space. For mattress shoppers with the bedroom space and budget, Alaskan kings offer uncompromising comfort that couples, parents, kids, and pets can all enjoy. If you’ve decided that an Alaskan king bed best suits your needs, shop our Luxe Alaskan King Mattress now and get ready for the ultimate sleep upgrade!
While anyone can enjoy the spacious luxury of an Alaskan king bed, they’re most popular with:
Alaskan king beds measure 108 inches by 108 inches. See our Alaskan king bed comparison to each size below:
Alaskan King vs Alberta King
The Alberta king is the second biggest mattress size, closely following the Alaskan king. Alberta king beds measure 96 inches wide by 96 inches long, or 8 feet by 8 feet. They’re 2,448 square inches smaller than Alaskan kings in surface area.
Alaskan King vs Texas King
Texas king beds have rectangular dimensions with greater length than width, making them a popular option for tall sleepers. They measure 80 inches wide by 98 inches long. Compared to an Alaskan king, a Texas king bed is 3,824 square inches smaller.
Alaskan King vs Wyoming King
The next oversized mattress in the lineup is the Wyoming king. Wyoming king beds span 84 inches wide by 84 inches long. Compared to Alaskan king mattresses, Wyoming king mattresses are 2 feet narrower and 2 feet shorter.
Alaskan King vs California King
Measuring 72 inches wide and 84 inches long, California king beds offer 6,048 square inches of sleep space. They’re 3 feet narrower and 2 feet shorter than Alaskan king beds.
Alaskan King vs King
Alaskan king mattresses are much bigger than standard kings. An Alaskan king mattress is 32 inches wider and 28 inches longer than a regular king (76 inches wide and 80 inches long). This equates to a 5,585-square-inch difference in sleep surface area.
Alaskan King vs Queen
Compared to a queen, an Alaskan king bed is 48 inches (4 feet) wider and 28 inches (2 feet and 4 inches) longer. In surface area, an Alaskan king is 6,864 square inches bigger than a queen.
An Alaskan king mattress is the largest mattress you can buy without customization! There is no standardized or widely available bed size larger than an Alaskan king.
Like all mattresses, Alaskan king mattresses run the gamut in quality and price. According to our research of online options, the average cost* for an Alaskan king mattress is around $5,800 in 2024.
Care for your Alaskan king like any other mattress! Set it up on a proper foundation, keep it clean and dry, spot clean any stains as needed, and rotate it 180 degrees every six months to spread out impressions and regular wear and tear.
*To find the average price for an Alaskan king mattress, we compiled non-sale price data on 11 models from select U.S. and Canadian online mattress brands. Prices were recorded on 1/3/24.
Disclaimer: Nolah does not provide medical advice. All resources on the Nolah blog, including this article, are informational only and do not replace professional medical counsel. Talk to your doctor about any health, mental health, or sleep-related issues.