Extra Wide King Mattress: Your Options Explained
A standard King mattress is 76" wide. If you need something wider, there are three main options: Wyoming King (84" wide), Texas King (80" wide and longer), and Alaskan King (108" wide - the largest available). Each is sold by specialist manufacturers with prices ranging from $2,000 to $8,000.
How Wide Can a King Mattress Get?
Here's how the extra wide options compare to a standard King:
| Name | Width | Length |
|---|---|---|
| Standard King | 76" | 80" |
| Texas King | 80" | 98" |
| Wyoming King | 84" | 84" |
| Alaskan King | 108" | 108" |
Which Extra Wide Mattress Is Right for You?
Choose Wyoming King if...
- ✓You want more width for co-sleeping
- ✓Square shape fits most master bedrooms
- ✓Most popular oversized size
Choose Texas King if...
- ✓You're tall (6'2"+) and need length more than width
- ✓Same width as standard King but 18" longer
- ✓Your feet hang off regular beds
Choose Alaskan King if...
- ✓You want maximum space
- ✓You have a very large bedroom (14' × 14' minimum)
- ✓You sleep with kids or multiple pets
Extra Wide King Mattress Prices
Prices vary by seller and materials. Here's what to expect for each size:
| Size | Budget | Mid-Range | Premium |
|---|---|---|---|
| Wyoming King | $1,500–$2,500 | $2,500–$4,000 | $4,000–$6,000 |
| Texas King | $1,500–$2,500 | $2,500–$4,000 | $4,000–$6,000 |
| Alaskan King | $2,500–$3,500 | $3,500–$5,000 | $5,000–$8,000+ |
Note: Add $1,000–$3,000 for a frame and $100–$400 for sheets. See our complete Alaskan King price breakdown for details.
Where to Buy an Extra Wide King Mattress
Only a handful of specialty manufacturers make extra wide mattresses. We've verified these sellers for product availability and shipping reliability:
Engineered Sleep
Modular mattress system with interchangeable comfort layers. 4th generation manufacturer since 1931.
Big Mattress Co.
Full-service oversized bed retailer with 100-night sleep trials and free shipping.
Mattress Insider
Custom mattress manufacturer offering adjustable firmness layers. Ships in sections.
Custom Mattress Factory
US-made oversized mattresses handcrafted to order. Runs AlaskanKingBeds.com.
Frequently Asked Questions
What is wider than a King size mattress?
Three oversized mattresses are wider than a standard King (76"): the Wyoming King at 84" wide, the Texas King at 80" wide (plus 18" longer), and the Alaskan King at 108" wide. All three are available from specialist manufacturers.
What is the widest mattress you can buy?
The widest standardized mattress is the Alaskan King at 108" (9 feet) wide. It's a perfect square at 108" × 108", giving you 81 square feet of sleeping surface - nearly double a standard King.
Is there a mattress bigger than a King?
Yes, there are three main options bigger than a standard King: the Wyoming King (84" × 84"), Texas King (80" × 98"), and Alaskan King (108" × 108"). Each offers significantly more sleeping space than a standard King (76" × 80").
What is an extra wide king mattress called?
Extra wide king mattresses have specific names depending on their dimensions: Wyoming King (84" × 84"), Texas King (80" × 98"), or Alaskan King (108" × 108"). These are the industry-standard names used by manufacturers.