Alaskan King vs King
Alaskan King is one hundred and eight inches by one hundred and eight inches. Standard king is seventy-six by eighty. Same name, different planet.
Two adults can share a standard king without overlap. Add a kid who turns sideways, and suddenly there is no neutral territory left in the middle. The Alaskan King fixes the overlap problem with sixty-four percent more square footage and a square shape that gives everyone equal access to the edge.
The math is below. Dimensions side by side, room size requirements, total cost across mattress, frame, sheets, and comforter, and a verdict on which way to go for the sleeping arrangement you have.
For a full overview of Alaskan King dimensions, sellers, and room requirements, see our Alaskan King size guide.
Size Comparison
| Specification | Alaskan King | King |
|---|---|---|
| Width | 108"✓ | 76" |
| Length | 108"✓ | 80" |
| Square Feet | 81 sq ft✓ | 42.2 sq ft |
| Room Size Needed | 14' x 14' | 12' × 14' |
✓ indicates the larger size in each category
Which Size Is Right for You?
Choose Alaskan King If...
- You co-sleep with children or multiple large pets
- You have a very large bedroom (14'x14' or bigger)
- You want maximum sleeping space regardless of cost
- You don't mind specialty bedding and frames
Choose King If...
- You want a bed available at any mattress store
- You prefer standard bedding that's easy to find and affordable
- Your bedroom is average to large (12'x12')
- You're a couple without kids or pets in bed
Frequently Asked Questions
How much bigger is an Alaskan King than a King?
An Alaskan King is 92% larger–81 square feet vs 42.2 square feet. It's 32 inches wider and 28 inches longer than a standard King.
Can I use King sheets on an Alaskan King?
No. King sheets fit a 76" x 80" mattress. An Alaskan King is 108" x 108"–you'd be short by over 2.5 feet in each direction. You need specialty Alaskan King bedding.
How much more does an Alaskan King cost than a King?
A King mattress costs $500–$2,500 from mass-market brands. An Alaskan King costs $2,500–$7,000+ from specialty manufacturers. Factor in more expensive frames ($1,000–$3,000) and bedding ($150–$400) too.
Is an Alaskan King worth the upgrade from a King?
If you co-sleep with children, have large pets, or simply want maximum space and have a 14'+ bedroom, yes. For couples without kids or pets in bed, a King is usually sufficient and far more practical.