I’ve noticed something interesting happening in the world of mattresses lately.
More and more people are choosing oversized beds, and the Alaskan King has become one of the most talked-about options.
If you’re here, you’re probably wondering about the exact Alaskan King bed size in feet and whether this massive mattress will fit in your bedroom. I get it.
When you’re spending serious money on a bed this big, you need to know the exact measurements.
Now, I’ll walk you through everything you need to know about the Alaskan King bed, from its precise dimensions to helping you decide if it’s the right choice for your home.
What Is an Alaskan King Bed?
An Alaskan King bed is one of the largest mattresses available for home use. It’s a specialty oversized mattress designed to give maximum sleeping space for families, couples with pets, or anyone wanting ultimate luxury.
The concept of oversized beds gained popularity in the early 2000s as people wanted more personal space while sleeping.
Manufacturers began creating custom sizes beyond standard King and California King options, with the Alaskan King emerging as the top choice.
People who typically purchase one include families practicing co-sleeping with multiple children, couples sharing their bed with large pets, very tall individuals needing extra length, and those seeking a luxurious statement piece for large master bedrooms.
Alaskan King Bed Size in Feet


The Alaskan King bed measures exactly 9 feet by 9 feet (or 108 inches by 108 inches). This makes it a perfect square mattress, providing an enormous sleeping surface.
In metric measurements, that’s approximately 2.74 meters by 2.74 meters, with a total sleeping area of 81 square feet. It’s important not to confuse the Alaskan King with other oversized options, especially when comparing an Alaskan King vs California King for room fit and sleeping space.
The Wyoming King measures 7 feet by 7 feet, while the Texas King is 8 feet by 8 feet. To put this in perspective, a standard King bed is 6.33 feet by 6.67 feet.
That means an Alaskan King provides about 2.7 feet more width and 2.3 feet more length, offering enough room for multiple adults, children, and pets to sleep comfortably.
Is the Alaskan King Mattress the Largest One?
Yes, the Alaskan King is the largest standard oversized mattress available on the market today.
While custom mattresses can be made in any size, the Alaskan King represents the biggest mainstream option retailers regularly offer.
When comparing oversized beds, the Wyoming King at 7×7 feet is the smallest specialty option, the Texas King at 8×8 feet sits in the middle, and the Alaskan King at 9×9 feet takes the top spot.
Some manufacturers create non-standard sizes called Family Bed or Family XL, but these aren’t widely available and lack standardized dimensions.
The Alaskan King is considered the largest mainstream option because it’s the largest size that multiple manufacturers regularly produce, with bedding, frames, and accessories reliably available.
Comparison Chart: Alaskan King vs Other Mattress Sizes
To help you understand just how much bigger an Alaskan King is compared to standard options, here’s a detailed comparison of popular mattress sizes:
| Mattress Size | Dimensions (Feet) | Dimensions (Inches) | Square Footage |
|---|---|---|---|
| Alaskan King | 9 ft × 9 ft | 108 in × 108 in | 81 sq ft |
| Texas King | 8 ft × 8 ft | 96 in × 96 in | 64 sq ft |
| Wyoming King | 7 ft × 7 ft | 84 in × 84 in | 49 sq ft |
| California King | 6 ft × 7 ft | 72 in × 84 in | 42 sq ft |
| Standard King | 6.33 ft × 6.67 ft | 76 in × 80 in | 42.2 sq ft |
| Queen | 5 ft × 6.67 ft | 60 in × 80 in | 33.3 sq ft |
This comparison clearly shows how the Alaskan King offers significantly more sleeping space than other mattress sizes.
Who Should Buy an Alaskan King Bed?


Co-sleeping families with multiple young children will appreciate the extra space that prevents everyone from feeling squished at night.
Tall sleepers who are 6 feet 5 inches or taller will love the 9-foot length, which lets them stretch out fully without their feet hanging off the edge.
Couples with pets who share their bed with one or more dogs or cats can create their own zones for everyone. People wanting ultra-luxury will find the Alaskan King impressive, making a bold statement in master bedrooms.
However, buyers must consider practical aspects, such as door access, as delivery of compressed or split mattresses that zip together usually requires professional assistance.
Pros and Cons of an Alaskan King Bed
Before making such a significant investment, it’s important to weigh both the benefits and drawbacks of an Alaskan King bed. Here’s what you need to know:
Pros
- Maximum sleeping space: 81 square feet means no more fighting for covers or feeling cramped.
- Excellent for co-sleeping: Families can bedshare with children or pets without disturbing each other.
- Luxurious appearance: Makes your bedroom feel like a five-star hotel suite that guests will remember.
- Ideal for tall or active sleepers: The 9×9 dimensions let you move freely without rolling off the edge.
Cons
- Requires large bedrooms: Needs a minimum of 16×16 feet, which most standard bedrooms can’t accommodate.
- Expensive: Higher costs for the mattress, custom frames, and specialty bedding.
- Hard to move: Size and weight make relocating or rearranging furniture a major project.
- Limited options: Custom sheets, comforters, and frames are required since standard sizes don’t fit.
Mattress Types & Bedding Options Available
Alaskan King mattresses come in various materials, including hybrid (combining innerspring coils with foam layers), memory foam (providing pressure relief), and latex (offering natural, responsive support).
Custom bed frames are essential since standard sizes won’t fit. You’ll need reinforced structures made from solid wood or heavy-duty metal, with platform bases being popular as they don’t require box springs.
Custom bedding is required for 108×108-inch mattresses. Fitted sheets, comforters, and duvet covers must be specially ordered.
Expect to pay 2 to 3 times the price of standard sizes, with sheet sets ranging from $200 to $400 and comforters from $300 to $600.
What to Consider Before Buying an Alaskan King Bed


An Alaskan King bed is a major purchase that requires careful planning and consideration. Before you commit to this investment, here are the essential factors you need to evaluate:
1. Room Measurements
Measure your bedroom carefully and ensure you have at least 16×16 feet of space; 18×18 feet is ideal for comfortable furniture placement.
Don’t forget to account for nightstands, dressers, and walking space around the bed.
2. Doorway and Stair Access
Measure all doorways, hallways, and stairways leading to your bedroom. Most Alaskan Kings are delivered compressed or in split sections that zip together.
Consider hiring professionals if your home has narrow passages or tight corners.
3. Budget
Factor in the cost of a custom frame ($800 to $2,000), specialty bedding ($500 to $1,000), and delivery fees ($200 to $500).
The total investment can easily reach $5,000 to $10,000 or more. Plan for ongoing costs like replacing bedding and potential moving expenses in the future.
4. Weight and Installation
An Alaskan King mattress can weigh 150 to 300 pounds, depending on the materials.
You’ll need a sturdy frame and, if needed, professional assembly to set everything up properly. Make sure your floor can support the combined weight of the mattress, frame, and sleepers.
5. Long-Term Practicality
Think about the future: moving homes becomes complicated with such a large bed, rearranging furniture requires major effort, and cleaning under the bed is challenging.
You may also find it difficult to sell or donate if you decide to downsize later.
6. Availability
Fewer retailers stock this size, so expect lead times of 6 to 12 weeks for custom builds. Rush orders are rarely available, so plan your purchase well in advance of when you need the bed.
Limited availability also means fewer options to compare in person before buying.
Where Can I Buy an Alaskan King Mattress?
Several retailers specialize in oversized mattresses. Big Mattress Co., Mattress Insider, and Alaskan King Bed Company offer custom sizes with various materials.
Local custom mattress makers can also build to exact specifications. When shopping, look for guaranteed 108×108-inch dimensions, delivery to your area, a minimum 90-night trial period, and strong warranty support.
Prices typically range from $2,000 to $6,000, with budget options starting at $1,500 and luxury hybrids exceeding $8,000. Always check recent customer reviews for delivery experience and quality.
Tips for Choosing the Right Alaskan King Bed
Making the right choice on an Alaskan King bed requires careful consideration of several important factors. Here are some key tips to guide your decision:
- Choose the right material: If you sleep hot, consider latex or hybrid mattresses with cooling features. For pressure relief, go with memory foam. For durability and support, hybrid constructions work best.
- Verify delivery and white-glove setup: Ask if the company offers professional installation and will bring the mattress to your bedroom, not just your door. Check if they remove your old mattress.
- Check warranty details: Look for a warranty of at least 10 years that covers defects and sagging. Understand what voids the warranty and ask about trial periods.
- Plan the room layout in advance: Use painter’s tape on your floor to mark the 9×9 bed location. Place existing furniture around this area to see what fits.
- Compare firmness levels: Test different firmness options if possible, or read detailed reviews. Since the bed is so large, you want to ensure the firmness level works for all sleepers who will use it.
Following these tips will help you make a confident purchase and avoid costly mistakes with your Alaskan King bed investment.
Conclusion
Now you know the exact Alaskan King bed size in feet: 9 feet by 9 feet, giving you a massive 81 square feet of sleeping space.
This is the largest standard mattress available, perfect for co-sleeping families, tall sleepers, pet owners, or anyone wanting ultimate luxury.
Before you buy, I recommend measuring your bedroom carefully, checking doorway access, and budgeting for the mattress, frame, and custom bedding.
If you have the space and budget, an Alaskan King can transform your sleep experience. Just remember to plan carefully and measure twice before making this significant investment.
Your bedroom and your back will thank you for the extra space!










