Sharing a bed can mean sharing space, too. If you and your partner often bump into each other, or your children and pets join you at night, an Alaskan king bed may offer welcome room to spread out. But a bigger mattress isn’t automatically a better choice. Its 108-by-108-inch footprint can take over a bedroom, and finding a matching frame, foundation, and bedding may require extra planning. This guide covers who may benefit from an Alaskan king, how it compares with other oversized beds, and what to check in your room before placing an order.
Key Takeaways
- An Alaskan King provides a spacious sleep surface: Its standard 108-by-108-inch size can work well for couples, families, pet owners, and people who like extra room.
- Measure your bedroom and delivery path: Include space for the frame, foundation, furniture, walkways, doorways, stairs, and tight turns.
- Check the complete setup before ordering: Confirm total costs, compatible bedding and support, delivery details, and return terms.
What Is an Alaskan King Bed?
An Alaskan king is an oversized, square mattress that gives sleepers substantially more room than a standard king. Its size can suit couples who prefer extra space, families who sometimes share a bed, and anyone who likes room to stretch out. Before shopping, check the exact dimensions: measurements and bed options can vary by manufacturer.
Standard Size: 108 by 108 Inches
A standard Alaskan king measures 108 inches wide by 108 inches long, or 9 feet by 9 feet. Unlike most mattress sizes, which are rectangular, it has equal measurements on all sides. Purple’s Alaskan king guide lists 108 by 108 inches as the standard size.
Plan for more than the mattress dimensions when measuring your room. A frame or headboard may extend beyond the mattress, and you’ll want enough space to walk around the bed and use nearby furniture. Check the bed’s assembled measurements with the seller, then map out its footprint in your bedroom before placing an order.
Square Shape and Oversized Sleep Surface
With 108 inches on each side, an Alaskan king provides 81 square feet of sleeping surface. Its square shape offers abundant side-to-side room as well as length for stretching out. That can be appealing if you share the bed with a partner, children, or pets, or simply want more personal space while you sleep.
Think about how the mattress will sit in your room before choosing one. Decide where you want the headboard and whether you’ll be able to reach bedside tables, open drawers, and move comfortably around the bed. A larger sleep surface can feel generous, but it also takes up considerably more floor space than a standard king.
Why Sizes Vary by Manufacturer
Although 108 by 108 inches is a common Alaskan king measurement, manufacturers may offer different dimensions, construction styles, or custom options. Frame, foundation, and bedding requirements can vary, too. Confirm the mattress’s exact measurements and what is included before buying, especially if you’re ordering a made-to-order model.
The name typically refers to the largest standard mattress size; custom beds can be larger, though they are less common, according to Casper’s comparison of Alaskan and California king beds. Ask the seller about delivery access, setup, return terms, and compatible foundations. Getting these details in writing can help you plan for the room and avoid surprises when your bed arrives.
How Does an Alaskan King Compare With Other Beds?
An Alaskan king is much larger than the standard mattress sizes most people know, but other oversized options offer different dimensions and layouts. Comparing them can help you find a bed that gives you the room you want while still fitting your bedroom and sleep needs.
Alaskan King vs. King and California King
A standard king measures 76 by 80 inches, and a California king measures 72 by 84 inches. Both offer room for two adults, but an Alaskan king measures 108 by 108 inches, giving you more width and length. That extra space can make sharing the bed with children or pets more comfortable, or give each sleeper more room to spread out.
Compared with a California king, an Alaskan king is 36 inches wider and 24 inches longer, with nearly twice the surface area, according to Casper’s comparison of the two sizes. The added space comes with practical considerations: you’ll need a larger room, a compatible frame, and specialty bedding. If you mainly want extra legroom, a California king may be easier to accommodate.
Alaskan King vs. Wyoming and Texas King
The Wyoming king and Texas king are other oversized options, each with a distinct shape. A Wyoming king measures 84 by 84 inches, while a Texas king measures 80 by 98 inches. At 108 by 108 inches, the Alaskan king is larger than both, with more space in both directions.
Think about how you use the bed as well as its total size. The Wyoming king offers a square sleep surface in a smaller footprint than the Alaskan king. The longer Texas king may suit tall sleepers who want more legroom without as much width. The Alaskan king offers the most room of these three, but it also requires more bedroom space. Purple’s guide to oversized bed dimensions provides a side-by-side comparison to help you weigh the options.
Why It Isn’t Two Queen Beds Pushed Together
Two queen mattresses placed side by side measure 120 by 80 inches. That setup is wider than an Alaskan king, but 28 inches shorter, so the dimensions and overall shape don’t match. It also creates a seam in the middle that sleepers may notice, especially if they tend to move toward the center of the bed.
An Alaskan king is designed as one large, square sleep surface, although some models may arrive in multiple pieces to make delivery and setup easier. If you’re considering a two-mattress arrangement, check the mattress heights, foundation support, and combined dimensions before buying. Casper’s size comparison shows why two queens won’t provide the same shape as an Alaskan king.
Who Benefits From an Alaskan King Bed?
An Alaskan King may suit you if a standard King or California King feels too small for the way you sleep. Its 108-by-108-inch surface gives couples, families, pet owners, and tall sleepers extra room to spread out. Before choosing one, think about who shares the bed, how much space you need, and whether your bedroom can accommodate its oversized footprint.
Couples Who Want More Room
If you and your partner regularly jostle for space, an Alaskan King gives you more room to shift positions and stretch out. Its square shape can also work well if you like sleeping at an angle or want more distance between you.
A larger mattress won’t necessarily stop movement from carrying across the bed. If one of you wakes easily, look at the mattress’s motion isolation and construction alongside its size. It’s also worth measuring your room before you shop: a bed this large can limit space for nightstands and clear paths around the mattress. Casper’s comparison of Alaskan and California King beds offers a helpful look at the difference in dimensions.
Families and Pet Owners Who Share a Bed
When children climb in for a morning cuddle or pets settle beside you at night, extra mattress space can make sharing feel more comfortable. An Alaskan King gives everyone more room to settle, though the available space depends on how many people and animals share the bed and their sizes.
Some manufacturers describe the mattress as suitable for several adults or for a couple sharing with children and pets. Treat those estimates as a starting point rather than a promise: comfort also depends on sleeping positions and how much personal space each person prefers. Purple’s Alaskan King guide describes how families and pet owners may use the size. Consider your household’s routines, too. If children or pets share the bed only occasionally, a smaller mattress may meet your needs while leaving more room for other bedroom furniture.
Tall Sleepers and People With Different Sleep Positions
At 108 inches long, an Alaskan King can give tall sleepers room to stretch out without their feet reaching the edge. Its width may also appeal to people who change positions often, sleep diagonally, or prefer more personal space beside a partner.
Size is only one part of a comfortable night’s sleep. When comparing mattresses, consider your usual sleep position, preferred firmness, and the support you find comfortable. Then check that the mattress and frame will fit your room, with space left to move around safely. Casper’s size comparison puts the Alaskan King’s dimensions in context with a California King, which can help you decide whether you need the additional length and width.
When a King or California King Fits Better
A larger bed may not be the right fit for every bedroom or sleep routine. A standard King can give two people plenty of width while leaving more floor space for dressers, nightstands, and walkways. A California King offers extra length compared with a standard King, but takes up less floor space than an Alaskan King.
Measure your bedroom before choosing, and include the bed frame and other furniture in your plan. You’ll also want enough clear space to walk around the bed and open drawers comfortably. Casper recommends a room of at least 16 by 16 feet for an Alaskan King in its guide to oversized bed dimensions. If that footprint would crowd your room, a King or California King may be a more practical choice.
Will an Alaskan King Fit Your Bedroom?
An Alaskan King measures 108 by 108 inches, or 9 feet square. Before you buy, consider not only whether the mattress fits in your bedroom, but also whether you’ll have room to move around it, use your furniture, and get the mattress into the room.
Measure the Room and Keep Walkways Clear
Measure the bedroom and compare its dimensions with the mattress. Remember that the frame and foundation will add to the bed’s footprint. A room around 16 by 16 feet is often recommended to leave space for walkways and other furniture, according to Purple’s Alaskan King size guide. A smaller room may leave little space for nightstands, dressers, or clear paths.
Measure the routes you use every day, including the space between the bed and the door, closet, or bathroom. Factor in bedside tables and storage, too. You’ll want to get in and out of bed and move through the room comfortably, without squeezing past furniture.
Plan Furniture Placement and Daily Use
Mark the mattress footprint on the floor with painter’s tape. Add room for the frame and foundation, then test your usual routine: open closet doors and drawers, walk around the bed, and check access to outlets and windows. This gives you a practical sense of how the bed may affect the room.
Consider what furniture you’ll need to move or replace. Slimmer nightstands or a different dresser location may make the layout work better. You can even leave the taped outline in place overnight to see how it feels in everyday use. Trying this floor-plan test can help you spot tight spaces before you order.
Check Doorways, Stairs, and Delivery Access
A mattress can fit in your bedroom but still be difficult to carry there. Measure exterior doors, hallways, stairwells, tight corners, and the bedroom entrance. Check for low ceilings and narrow turns along the delivery route. Purple’s guide also recommends checking access points before buying.
Ask the retailer how the mattress and base are packaged, and confirm whether delivery includes carrying the bed upstairs, setup, and packaging removal. If your home has narrow stairs or hallways, ask whether a split or modular design is available. Planning ahead can help you avoid delivery problems and make sure the bed can be set up where you want it.
What Does an Alaskan King Bed Cost?
An Alaskan King is a specialty-size bed, so budget for more than the mattress. A compatible foundation and frame, oversized bedding, delivery, and setup can all affect the total. Prices vary by materials, construction, and how much of the setup is custom-made. Ask for an itemized quote before you buy so you can compare the full cost.
Compare Mattress and Custom-Order Prices
Alaskan King mattresses typically start around $3,000, and some models cost more than $15,000, according to Purple’s Alaskan King bed guide. The final price depends on factors such as materials, comfort layers, construction, and whether the mattress is made to order.
When comparing options, confirm what each quote includes. One may cover only the mattress, while another may include a foundation or delivery. Ask about the warranty, return policy, production time, and whether the mattress ships in one piece or several. If you’re choosing between different comfort options, check whether the seller offers a topper or another way to fine-tune the feel after delivery.
Include the Foundation, Frame, Delivery, and Setup
An Alaskan King needs a frame and foundation made to fit its dimensions. Add both to your budget, and ask whether they’re included with the mattress or sold separately. Confirm the frame’s weight capacity and support requirements, including whether it needs center supports.
Delivery and setup can add to the cost, especially if the mattress is heavy or difficult to move through your home. Ask whether delivery includes carrying it to the bedroom, assembling the frame, and removing packaging. Some mattresses arrive in multiple pieces to make transport easier. Before ordering, measure hallways, stairs, and doorways, and check what the seller’s delivery team can accommodate.
Budget for Specialty Bedding, Moving, and Parts
Standard sheets and comforters may not fit an Alaskan King, so include specialty bedding in your budget. Look for sheets, a mattress protector, and a comforter or duvet made for the bed’s exact dimensions. Check measurements carefully, since sizing can vary by manufacturer, and ask about availability and delivery times before placing your mattress order.
You may also want to budget for a topper, extra pillows, replacement parts, or the cost of moving the bed if you change homes. These items can be harder to find in oversized dimensions than standard bedding. Before committing, make sure you can get the essentials you need, and ask the mattress or frame seller which accessories are compatible.
How to Choose an Alaskan King Mattress and Frame
Choosing an Alaskan King means considering comfort and support alongside practical details such as weight, delivery, and room access. Check the mattress and frame specifications together, since dimensions, materials, and setup requirements vary by manufacturer.
Match Comfort, Support, and Materials to Your Needs
Start with your sleep position and comfort preferences. Side sleepers may prefer cushioning around the shoulders and hips, while back and stomach sleepers often look for a firmer feel. If you share the bed, talk through your preferences and consider whether you need a mattress with a balanced, medium feel.
Materials also shape how a mattress feels. Foam tends to contour closely, while coils usually feel more responsive. Hybrid mattresses combine foam and coils for a mix of cushioning and support. Alaskan King Sleep describes its mattress as designed for pressure relief, full-body support, durability, and motion isolation. Review the specific model’s materials and firmness details to see whether they match your needs.
Consider Motion Isolation, Construction, Weight, and Warranty
If movement from a partner or pet interrupts your sleep, look for a mattress designed to reduce motion transfer. Foam layers can absorb some movement, while hybrid designs pair foam with coils for a balance of cushioning and support. Performance depends on the mattress’s specific construction, so check the layer details and product testing information.
Also consider the mattress’s weight and delivery requirements. A large, heavy mattress may need professional setup or extra help getting into the bedroom. Read the warranty before buying, paying attention to coverage, exclusions, and how to make a claim. Alaskan King Sleep reports that its Luxe mattress scored 9.01 overall in performance tests and ranked in the top 20% of mattresses tested. Use test results as one factor alongside comfort, construction, and warranty terms.
Check Center Support and Foundation Compatibility
An Alaskan King mattress needs a frame and foundation built for its dimensions and weight. Confirm the exact measurements with the seller, then check which bases the mattress manufacturer recommends. A standard king frame will not fit, and an incompatible base may leave parts of the mattress without proper support.
Ask about the frame’s weight limit and center support, including the placement of support beams and legs. Check whether the mattress requires a solid platform, slats, or a particular foundation. Specialty frames and bedding can take extra planning, so Purple’s Alaskan King guide recommends accounting for a custom mattress, frame, foundation, sheets, and comforter. Verify that all components are compatible before ordering.
Compare Custom and Multi-Piece Designs for Easier Setup
A custom mattress may offer more choice in materials, firmness, or dimensions. Before ordering, ask about production times, delivery, setup, and return terms. Find out whether the mattress arrives in one piece or several, and whether delivery includes bringing it into the bedroom. Hallways, stairs, and tight turns can affect which design works best for your home.
Multi-piece mattresses may be easier to ship and maneuver. Alaskan King Sleep says its mattress arrives in three boxes: two contain mattress-core quadrants, and one contains the foam topper and mattress shell. Ask how the pieces fit together, whether seams are noticeable, and whether assembly requires help. Confirm that the frame supports the mattress as intended, and keep the setup instructions for future moves.
How to Find Bedding and Accessories for an Alaskan King
Find Right-Size Sheets, Protectors, Toppers, and Comforters
An Alaskan King mattress is much larger than a standard king, so standard king sheets, protectors, toppers, and comforters are unlikely to fit as intended. Measure your mattress and compare its exact dimensions with each product’s specifications. Sizes can vary by manufacturer, so check the measurements rather than relying on the Alaskan King label alone.
Look for bedding made specifically for your mattress size, or ask a specialty retailer about custom options. For fitted sheets, confirm the pocket depth as well as the length and width. Check comforter dimensions to make sure they provide enough coverage. Purple’s Alaskan King guide explains why oversized bedding is often needed. Ordering sheets and a protector from the same retailer can also make it easier to confirm they’re designed to fit.
Check Fit Before Buying a Frame or Foundation
Choose a frame or foundation that supports the mattress’s full dimensions. Before ordering, check the manufacturer’s specifications for the required base size and any center-support requirements. If you’re having a frame made to order, give the maker the mattress measurements and ask how the design will support the mattress.
Measure your home’s delivery route, too. Check doorways, hallways, stairs, and tight turns, then confirm whether the frame or foundation arrives in pieces and can be assembled in the bedroom. Specialty frames and foundations can be harder to find, so verify availability and compatibility before purchasing the mattress. Checking these details early can help prevent delays and make sure the bed has the support it needs.
Expect Limited Selection, Custom Options, and Lead Times
Alaskan King accessories may be less widely available than standard sizes. You may need to shop with a specialty retailer or order custom sheets, protectors, toppers, and comforters. Before placing an order, confirm the finished dimensions, fabric and care details, production time, and return policy. Custom products may have different return terms from ready-made items.
Plan your purchases well ahead of when you want to use the bed. A custom mattress, frame, or bedding set may take time to make and ship, and separate orders can arrive on different schedules. Measure the bedroom and check delivery access before ordering. Casper recommends a bedroom of at least 16 by 16 feet to accommodate an Alaskan King and leave room to move around it.
What Trade-Offs Come With an Alaskan King Bed?
An Alaskan King gives you an exceptionally large sleep surface, but its size affects more than how much room you have to stretch out. Consider your bedroom layout, how you’ll get the bed into the room, and whether you can find the mattress accessories you need before deciding if it’s the right fit.
Large Beds Aren’t Just for Families
Families who share a bed with children or pets may appreciate the extra room, but you don’t need to share your bed to enjoy it. Couples who want more space between them, restless sleepers, and people who like to spread out may also find an Alaskan King comfortable. Its size can offer more room to change positions, though your preferred sleeping position and the mattress dimensions still matter.
Consider how you use your bed night to night. If you sleep alone or with a partner and rarely feel cramped, a King or California King may offer enough room with fewer demands on your bedroom and budget. Purple’s Alaskan King guide notes that the size can fit several adults or a couple sharing with children and pets. Think about who will use the bed and how often before choosing the larger size.
Plan for a Spacious, Well-Arranged Room
At 108 by 108 inches, an Alaskan King can take up a substantial part of a bedroom. A room of at least 16 by 16 feet is often recommended, but the layout matters as much as the measurements. Leave room to walk around the bed, open doors and drawers, and reach other furniture without squeezing through narrow gaps.
Before you order, mark the bed’s footprint on the floor with painter’s tape. Then measure the space left for nightstands, dressers, and walkways. If possible, leave 2 to 3 feet of open space on three sides. Casper’s bed-size comparison also recommends planning for open space around the bed. If the taped outline leaves little room to move, a smaller mattress may suit your room better.
Custom Options Vary in Availability
Alaskan King mattresses, frames, foundations, sheets, and comforters can be harder to find than standard sizes. Some items may need to be custom-made, and availability, materials, and delivery times vary by retailer. Check the exact measurements before ordering, since some manufacturers may offer dimensions that differ from the standard 108 by 108 inches.
Confirm that you can find a compatible foundation, fitted sheet, mattress protector, and comforter before committing to a mattress. Ask retailers about production and shipping timelines, return policies, and replacement parts, too. Purple’s sizing guide explains that oversized bedding and accessories may be difficult to source. Checking these details early helps you plan for the complete sleep setup, rather than the mattress alone.
Frequently Asked Questions
How big is an Alaskan King bed?
A standard Alaskan King mattress measures 108 by 108 inches, or 9 feet by 9 feet. Check the manufacturer’s measurements before ordering, since dimensions can vary.
What size bedroom do you need for an Alaskan King?
A room around 16 by 16 feet is often recommended, but your furniture layout matters too. Mark the bed’s footprint on the floor and check that you can still open doors and drawers and walk around comfortably.
Is an Alaskan King larger than a California King?
Yes. A California King measures 72 by 84 inches, while an Alaskan King measures 108 by 108 inches. A California King may work better if you mainly want extra length but have limited floor space.
Can you use standard King sheets and a standard King frame?
Usually not. An Alaskan King needs a frame and foundation sized for its dimensions, along with bedding made for the mattress. Confirm measurements and compatibility with the seller before buying.
What should you budget for besides the mattress?
Include a compatible frame and foundation, specialty bedding, delivery, and setup. Ask for an itemized quote and confirm the retailer’s warranty, return terms, and delivery details.
