Alaskan King Bed
One hundred and eight inches by one hundred and eight inches. Nine feet square. Eighty-one square feet of sleeping surface. The Alaskan King is the biggest standard oversized bed sold by multiple US manufacturers, and people come to it for two reasons. Either they are a co-sleeping family that needs the square footage so a toddler can horizontal-spread without anyone getting kicked, or they fell in love with the look on Instagram and want to understand what owning one involves.
Both stories end up at the same questions. Will it fit your room. Will it fit through the door. What does it cost to fully outfit. Which seller can ship it in time for next month's move-in.
Everything you need to make the call is below. Dimensions, room requirements, real pricing, verified sellers, and what to expect during setup.
The Alaskan King is the largest standard oversized mattress at 9 feet by 9 feet (108" x 108"). With 81 square feet of sleeping surface, it's nearly twice the size of a standard King bed.
Who It's For
- Co-sleeping families with multiple children
- Couples with large pets
- Anyone who wants maximum sleeping space
Room Requirements
Measure your bedroom before ordering. Allow at least 2-3 feet on each side of the bed for walking space, plus room for nightstands and other furniture.
Pros and Cons
Pros
- ✓Largest standard size available
- ✓Fits 2 adults + 2-3 children comfortably
- ✓Square shape means no 'wrong' orientation
- ✓Perfect for co-sleeping families
Cons
- ✗Requires very large bedroom
- ✗Limited frame and bedding options
- ✗Difficult to move (often 200+ lbs)
- ✗Premium pricing ($3,000-$7,000+)
Where to Buy Alaskan King Beds
Last verified: February 2026
14 sellers currently offer Alaskan King beds. Most oversized beds are made-to-order and ship directly from the manufacturer.
| Seller | Price Range | |
|---|---|---|
Engineered SleepFeatured✓ Verified specs Best for modular/dual-firmness 15% off with BIGBED15CoolingCustom firmness MattressFoundation | $3,200 - $6,000 | Visit |
Sleep Boutique / Von Viva✓ Verified specs🍁 Best for Canadian buyers Motion isolation: highEdge support: highCoolingCustom firmness MattressFoundation | $3,700 - $8,000 | Visit |
Nolah Sleep✓ Verified specs Best for fast delivery Motion isolation: highCoolingCustom firmness MattressFoundation | $2,500 - $4,000 | Visit |
Rest Right Mattress✓ Verified specs Best for original-manufacturer trust Cooling MattressFrameFoundationBedding | $2,600 - $7,000 | Visit |
Alaskan King Sleep✓ Verified specs Best for Brooklyn Bedding craftsmanship Cooling MattressFrameBedding | $3,000 - $7,000 | Visit |
Big Mattress Co.✓ Verified specs Best for budget-conscious buyers Motion isolation: highCoolingCustom firmness MattressFrameBedding | $2,000 - $5,000 | Visit |
Mattress Insider✓ Verified specs Best for custom sizing CoolingCustom firmness MattressFrameBedding | $2,000 - $4,500 | Visit |
Custom Mattress Factory✓ Verified specs Best for traditional craftsmanship MattressFrameBedding | $2,000 - $5,500 | Visit |
AdultBunkBeds.com✓ Verified specs🍁 Best for frame variety 2,000 lb capacity FrameMattress | $2,000 - $8,000 | Visit |
Delarkin✓ Verified specs Best for Imperial King (144x144) Motion isolation: high MattressFoundation | $2,500 - $8,000 | Visit |
Melaaura Best for luxury Italian frames White-glove delivery FrameBedding | $5,000 - $20,000 | Visit |
Vero Linens Best for luxury Italian linens Cooling Bedding | $260 - $1,150 | Visit |
Byourbed Best for branded oversized comforters Bedding | $138 - $350 | Visit |
OCOCHI Bedding | $1,500 - $4,000 | Visit |
Featured: Engineered Sleep
4th generation mattress makers - handcrafted in the USA since 1931. Use code BIGBED15 for 15% off.
Common Mistakes When Buying an Alaskan King
Ordering standard King accessories
This is the most common and most expensive mistake. Standard King sheets (76" × 80"), comforters, mattress protectors, and bed skirts are all far too small for a 108" × 108" Alaskan King. You need bedding specifically sized for this bed. See our Alaskan King sheets guide for what's available.
Underestimating room size requirements
An Alaskan King takes up 81 square feet – 56% of a 12×12 room. We recommend a minimum 14×14 room. See our room size guide for detailed layouts at each room size.
Forgetting about doorway and stair clearance
Your bedroom might be big enough, but can you get the mattress there? Standard doorways are 32–36 inches wide. Most Alaskan King mattresses ship in 2–3 modular sections to solve this, but always confirm with your seller before ordering. Our moving guide covers this in detail.
Not checking return policies
Most oversized beds are custom-made and non-returnable. Only Big Mattress Co. (100-night trial) and Nolah Sleep (120-night trial) offer sleep trials on Alaskan King mattresses. If trying before committing is important to you, start with one of these sellers.
Ignoring total cost
The mattress is only part of the expense. Budget for the frame ($1,000–$3,000), sheets ($80–$400), comforter ($200–$500), and potentially white-glove delivery ($200–$600). Our full cost breakdown has the details.
Alaskan King Bedding Availability
Finding bedding for a 108" × 108" bed isn't like shopping for a standard King. Here's what's easy and what's harder to find:
Easy to find
- ✓Fitted sheet sets – available from OCOCHI, Alaskan King Bed Co., Mattress Insider, and Big Mattress Co. Multiple material options (cotton, bamboo, microfiber). Prices: $80–$400.
- ✓Mattress protectors – available from OCOCHI and Alaskan King Bed Co. Essential for protecting a $2,500+ mattress.
- ✓Comforters/duvets – available from OCOCHI, Alaskan King Bed Co., and Big Mattress Co. See our Alaskan King comforter page.
Harder to find
- ✗Weighted blankets in Alaskan King size – very limited availability
- ✗Decorative pillowcases and shams in matching sets – most sellers carry only basics
- ✗Bed skirts for 108" × 108" – uncommon; most owners use platform frames
- ✗Heated blankets or electric mattress pads – not currently available
For a complete guide to sheets, materials, and budget options, see our Alaskan King sheets buying guide.
Frequently Asked Questions
How big is an Alaskan King bed?
An Alaskan King bed measures 108 inches by 108 inches (9 feet x 9 feet), providing 81 square feet of sleeping surface. It's the largest standard mattress size available.
What size room do I need for an Alaskan King bed?
You'll need at least a 12' x 12' room, but 14' x 14' or larger is recommended to allow for walking space, nightstands, and other furniture.
How much does an Alaskan King bed cost?
Alaskan King mattresses typically range from $2,500 to $7,000+ depending on materials and brand. Frames add another $1,000-$3,000. Budget $4,000-$10,000 for a complete setup.
Can you find sheets for an Alaskan King bed?
Yes, but options are limited. Most oversized bed manufacturers sell matching sheets. Expect to pay $150-$400 for a quality Alaskan King sheet set.
How do you move an Alaskan King mattress?
Most Alaskan King mattresses are modular (2-3 pieces that zip together) or can be folded for moving. This makes them easier to navigate through doorways and stairs than their size suggests.