Alaskan King
Mattress
The World’s Largest Luxury Bed — 108″ × 108″
Designed for co-sleeping families, tall sleepers, and anyone who believes sleep should never feel crowded. At 9 feet by 9 feet, the Alaskan King Mattress is handcrafted using organic cotton, natural latex, and cashmere — no shortcuts, no mass production.
Every mattress is custom-built to order in our North Carolina workshop using heritage craftsmanship techniques and certified organic materials — free from harmful chemicals and built to last decades.
Our Collections
Three Tiers of Perfection
Every Alaskan King Mattress is custom-built to order in North Carolina — handcrafted with organic and natural materials for the healthiest, most comfortable sleep environment available anywhere in the world. Choose the model that fits your sleep style.
All three models share the same 108″ × 108″ (9 ft × 9 ft) footprint, the same organic material commitment, and the same modular delivery system that fits through any standard 36″ doorway.
Firm. Supportive. Timeless.
The Original
Built for sleepers of all shapes and sizes who prefer a firm, supportive feel. The Original features a sprawling quilted organic cotton surface engineered for maximum pressure relief across the entire 9-foot span — without harmful chemicals or synthetic fillers.
Individually wrapped pocketed coils deliver zoned support across the full 108″ × 108″ surface. The quilted organic cotton pillow-top provides gentle cushioning without sacrificing the firm responsiveness that back and stomach sleepers love.
- Quilted Organic Cotton Cover
- Pocketed Innerspring Coils
- No Harmful Chemicals
- Hypoallergenic Construction
Plush. Boutique-Hotel. Beloved.
The Royale
Our most popular Alaskan King model. Topped with luxury baby-soft cashmere and multiple layers of natural latex — engineered layer upon layer to cradle your body in cloud-like comfort while maintaining optimal spinal alignment.
The Royale replicates the feeling of the finest five-star hotel mattresses, now in a 9-foot format. Natural latex layers conform to each sleeper's unique pressure points while the breathable cashmere cover naturally regulates body temperature throughout the night.
- Baby-Soft Cashmere Cover
- Natural Latex Comfort Layers
- Organic Cotton Foundation
- Temperature-Regulating Design
Ultimate. Flippable. Unrivaled.
The Grand Royale
The pinnacle of restorative sleep technology. A two-sided flippable Alaskan King mattress with multiple tiers of ultra-soft cashmere and HyperCool™ technology — breathable open-cell natural latex engineered for all-night cool comfort.
Flip between a plush cashmere side for winter warmth and the HyperCool™ open-cell latex side for summer breathability. Both sides are premium. Both sides are purpose-built. One mattress. Two perfect sleep experiences. Built to last 20+ years.
- Dual-Sided Cashmere Construction
- HyperCool™ Open-Cell Latex
- Flippable Design
- 20+ Year Durability
Why Choose Us
Sleep Has No Limits
Here
Most families compromise — they buy the biggest mass-market mattress and still wake up fighting for space, with someone always teetering on the edge. The Alaskan King was built around a different belief: that sleep should bring your family together, not push you apart.
At 108 inches wide and 108 inches long, the Alaskan King Mattress offers nearly three times the sleeping surface of a standard California King. It is the only mattress in the world designed to give every member of the family — including the family dog — their own generous personal space without anyone being disturbed.
Every mattress is custom-built to order in North Carolina using heritage craftsmanship techniques. No shortcuts, no mass production — just a sleep surface built to last decades and designed to become a centerpiece of your home.
Check Prices on AmazonSize Matters
How Big Is an Alaskan King?
The Alaskan King Mattress measures 108 inches by 108 inches — that is 9 feet in each direction and a total sleeping surface of 81 square feet. To put that in perspective:
- Twin XL38" × 80"The Alaskan King is 5× larger
- Queen60" × 80"The Alaskan King is 2.4× larger
- King76" × 80"The Alaskan King is nearly 2× larger
- California King72" × 84"The Alaskan King is nearly 2× larger
- Alaskan King108" × 108"The ultimate family sleep surface
A bedroom of at least 15 ft × 15 ft is recommended. For ideal comfort and aesthetic balance, a 16 ft × 16 ft room is preferred. The modular delivery system ensures the mattress will fit through any standard 36″ doorway.
What’s Inside
Organic Materials, Built to Last
We use only certified organic and natural materials — no synthetic foams, no chemical off-gassing, no petroleum-based fillers. Every layer is selected for its natural performance properties and long-term durability.
GOTS-Certified Organic Cotton
The outer quilted cover uses GOTS-certified organic cotton — grown without pesticides or synthetic fertilizers. Naturally breathable, soft to the touch, and hypoallergenic for the cleanest possible sleep surface.
100% Natural Latex
Tapped from rubber trees and processed without chemicals, our natural latex layers offer pressure-point relief and responsive bounce. Naturally resistant to dust mites, mold, and bacteria — ideal for allergy sufferers.
Baby-Soft Cashmere (Royale & Grand Royale)
Ultra-fine cashmere fibers are woven into the comfort layer for a silky, temperature-regulating surface. Cashmere naturally wicks moisture and adapts to body heat — warmer in winter, cooler in summer.
Individually Wrapped Pocketed Coils
Each coil moves independently to contour to body shape while minimizing motion transfer. The coil perimeter is reinforced to maintain edge support across the full 9-foot width for decades of consistent use.
Our Promise
“We build every mattress as if it were for our own family — because we believe boundless sleep is a right, not a luxury.”
— Alaskan King Bed Company, North Carolina
Every mattress is made-to-order by skilled craftspeople in our North Carolina workshop. Build time is typically 4–8 weeks. We do not rush the process — because your family’s sleep deserves the time it takes to do it right.
Key Benefits
Engineered for Every Sleeper
From tall adults and co-sleeping families to light sleepers and allergy sufferers — the Alaskan King is the only mattress built to solve all these problems simultaneously.
Family First Design
Designed specifically for co-sleeping families, attachment parenting, and weekend family time. At 9 feet wide, there is room for parents, children, and pets — without anyone getting pushed to the edge.
Made for Tall Sleepers
The Alaskan King is the only standardized mattress that allows anyone over 6′5″ to sleep diagonally, sideways, or stretched fully flat — in any direction — without their feet hanging off the edge.
Zero Motion Transfer
Individually wrapped pocketed coils isolate movement at the source. Combined with the sheer scale of the 9-foot sleeping surface, motion from one side of the bed will never disturb a sleeper on the other.
Modular Doorway Delivery
Arrives in multiple zippered pieces that seamlessly join into one unified sleeping surface. Every component fits through a standard 36″ doorway — no need for construction, removal of door frames, or special access.
Built to Last Decades
Reinforced perimeter edge support and high-quality pocketed coils resist sagging at the edges — the most common failure point in mass-produced oversized beds. Built to deliver premium support for 15–20+ years.
Organic & Hypoallergenic
GOTS-certified organic cotton and natural latex are inherently resistant to dust mites and common allergens. No synthetic foams, no off-gassing, no chemical smell — just clean, healthy materials for your family's sleep.
Custom-Built to Order
No warehouse inventory. No factory shortcuts. Each Alaskan King Mattress is built by hand after your order is placed, ensuring every detail — from the stitching to the coil tension — meets our quality standards.
Superior Edge Support
A reinforced perimeter frame means the full 108-inch span is usable sleeping space. Sit on the edge, sleep near the edge — the Alaskan King will hold its shape and support regardless of where you rest.
The Alaskan King Lifestyle
Wake Up to Boundless Space
Imagine waking up to 81 square feet of premium sleep surface — no alarm from a partner’s elbow, no tug-of-war over blankets, no small body wedged between you at 3 AM. Just uninterrupted, restorative sleep.
The Alaskan King transforms your bedroom into a genuine sanctuary. Its scale creates a natural focal point for any room — a statement piece that signals a family that takes rest seriously.
Paired with custom Alaskan King bedding in premium linens, cashmere throws, and a matching frame, the result is a master bedroom that rivals the finest hotel suites in the world — built around your specific needs.
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Got Questions?
Alaskan King Mattress FAQ
Everything you need to know before investing in the world’s largest luxury mattress — from size and delivery to materials and care.
The Alaskan King Mattress measures 108 inches × 108 inches — that is exactly 9 feet by 9 feet, with a total sleeping surface of 81 square feet. This makes it the largest standardized mattress size available, offering nearly three times the sleeping surface of a traditional California King (72″ × 84″) and more than double the space of a standard King (76″ × 80″).
Ready to experience the world’s largest luxury bed?
Shop the full Alaskan King Mattress collection on Amazon with reliable delivery and a full satisfaction guarantee. Three models — one legendary size.
Custom-built in North Carolina. 108″ × 108″. Organic materials. Handcrafted to order.
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