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An Alaskan king bed measures 9 feet by 9 feet, nearly twice the size of a standard king. Here is what it costs, the room it needs and the alternatives worth considering.
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An Alaskan king bed is the largest mattress size you can buy, a 9 foot by 9 foot square that dwarfs a standard king. It is popular with families who co-sleep, owners of large dogs and anyone who simply wants the biggest bed possible. Before you commit, it helps to understand what an Alaskan king actually involves: custom bedding, a custom frame, a very large room and a delivery plan. This guide covers the dimensions, what it costs, how it compares with other oversized beds, and the practical alternatives most families end up choosing.
An Alaskan king is a specialty mattress size measuring 108 inches wide by 108 inches long. It is not one of the standard sizes sold by most manufacturers, so it is usually made to order by specialty companies. Because the mattress is square, there is no "head" or "foot" width difference, and it can be positioned in any direction.
For perspective, an Alaskan king has about 11,664 square inches of sleeping surface. A standard king (76 by 80 inches) has 6,080 square inches, so an Alaskan king is nearly twice as large.
| Size | Dimensions (inches) | Dimensions (feet) | Surface area vs standard king |
|---|---|---|---|
| Queen | 60 x 80 | 5 ft x 6 ft 8 in | About 79% |
| King | 76 x 80 | 6 ft 4 in x 6 ft 8 in | 100% |
| California king | 72 x 84 | 6 ft x 7 ft | About 99% |
| Wyoming king | 84 x 84 | 7 ft x 7 ft | About 116% |
| Texas king | 80 x 98 | 6 ft 8 in x 8 ft 2 in | About 129% |
| Alaskan king | 108 x 108 | 9 ft x 9 ft | About 192% |
The Wyoming king and Texas king are the other two common oversized options. A Wyoming king is a modest step up from a king, while a Texas king is aimed at very tall sleepers. The Alaskan king is in a class of its own. Our guide to king, California king and oversized mattresses covers the standard large sizes in more detail.
This is where most Alaskan king plans fall apart. A comfortable bedroom layout leaves roughly 24 to 30 inches of walking space on each side of the bed and at the foot. With a 9 foot bed, that means:
Also measure doorways, hallways and stairwells. A 9 foot square mattress cannot pass through a standard doorway in one piece, so check with the manufacturer how the bed is delivered. Some are built in sections that are joined on site, and some all-foam versions ship compressed. Either way, confirm the delivery method before you order.
Expect an Alaskan king to sit in the premium price tier. Because it is made to order, you are paying for custom manufacturing, specialty shipping and far more material than a standard king. The mattress is only part of the cost:
Add it all up and the total project usually costs well above what a premium standard king mattress would, even before bedding replacements over the years.
If none of those apply, a standard king or California king will almost always be the more practical choice.
Many shoppers who search for an Alaskan king end up solving the same problem with standard sizes. These setups use regular bedding, standard frames and mattresses you can test in a showroom.
A king (76 inches) next to a twin XL (38 inches) creates a 114 by 80 inch sleeping area, wider than an Alaskan king, using two standard mattresses. It is a popular family bed setup, and each mattress uses normal sheets. A bed bridge or connector strap keeps them from drifting apart.
Two queens side by side make a 120 by 80 inch surface. It is a good option when two adults and children share the bed, and each side can have a different firmness.
If the goal is more personal space for two adults rather than more total area, a split king gives each person their own twin XL mattress and independent head and foot adjustment. Read our split king mattress guide and browse adjustable beds to see how it works.
If height is the real issue, a California king adds 4 inches of length over a standard king. It fits most large bedrooms and uses widely available bedding.
An Alaskan king bed measures 108 inches by 108 inches, or 9 feet by 9 feet. That is nearly twice the sleeping surface of a standard king.
It is a specialty oversized mattress size, larger than king, California king, Wyoming king and Texas king. It is usually made to order and needs custom bedding and a custom frame.
Alaskan king mattresses sit in the premium price tier because they are custom made and shipped as oversized freight. Budget separately for a custom frame, specialty bedding and delivery, which can add significantly to the total.
Alaskan king beds are sold mainly by specialty manufacturers and online retailers that build oversized sizes to order. Most mattress stores, including LA Mattress Store, do not stock them. If you want a very large sleeping area you can try first, pairing standard sizes, such as a king with a twin XL, is a practical alternative.
If you want more room without the custom-size headaches, visit one of our five Los Angeles showrooms to try king size mattresses from Tempur-Pedic, Stearns & Foster, Helix and more, or ask about pairing mattresses for a family bed. We offer same-day delivery and a free 120-night comfort guarantee. Not sure which feel you need? Take our sleep quiz.
Start with a mattress type that suits how you sleep, then compare the feel in person.
Prices for Queen · Choose options for other sizes
Est. $124.84/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $749.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $158.17/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $949.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $146.50/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $879.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $91.63/month for 24 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 24 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 24-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $2,199.00 for one selected item by 24 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $92.42/month for 12 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 12 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 12-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $1,109.00 for one selected item by 12 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
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