Alaskan King vs California King
The Alaskan King (108" x 108") is nearly twice the size of a California King (72" x 84"). Choose Alaskan if you need maximum space for family co-sleeping; choose California King if you want a widely available bed with standard bedding options.
Size Comparison
| Specification | Alaskan King | California King |
|---|---|---|
| Width | 108"✓ | 72" |
| Length | 108"✓ | 84" |
| Square Feet | 81 sq ft✓ | 42 sq ft |
| Room Size Needed | 14' x 14' | Varies |
✓ indicates the larger size in each category
Which Size Is Right for You?
Choose Alaskan King If...
- You have a large bedroom (14'x14' or bigger)
- You co-sleep with children or multiple pets
- You want the largest bed possible
- You don't mind custom/limited bedding options
Choose California King If...
- You want a bed available at any mattress store
- You prefer standard bedding that's easy to find
- Your bedroom is average-sized
- You're tall and want extra length over width
Frequently Asked Questions
How much bigger is an Alaskan King than a regular 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.
Is an Alaskan King worth it over a King?
If you co-sleep with children, have large pets, or simply want maximum space and have a large bedroom, yes. For couples without kids/pets in bed, a King is usually sufficient and far more practical.
Can I use King bedding on an Alaskan King?
No. King sheets and comforters are far too small. You'll need specialty Alaskan King bedding, which costs more and has fewer options.