How Big Is an Alaskan King Bed?

Reach the pinnacle of sleep luxury with an Alaskan King size mattress, measuring 108 inches wide by 108 inches long, or 9 by 9 feet.


An Alaskan King is a perfect fit for families, pet owners, or anyone who dreams of sprawling out and claiming space for uninterrupted rest. This oversized mattress will change the game for any couple that spars over their side of the bed. With enough room for two adults and up to four children or pets, Alaskan Kings also offer a cozy solution for co-sleepers.

Alaskan King Mattress Size Comparison

Named after the largest state in the U.S., the Alaskan King is the biggest bed size on the market and offers a whopping 11,664 square inches of sleep space. Alaskan Kings are wider and longer than any model sold at a traditional mattress store, awarding you the freedom to spread out and stretch out for utmost comfort.

Bringing Home an Alaskan King

Will an Alaskan King bed fit your lifestyle? To leave space for walkways and essential furniture, we recommend Alaskan Kings for bedrooms 16 feet by 16 feet or larger. See the diagram below to envision these room dimensions with a dresser, two nightstands, and an Alaskan King mattress and base.

FREQUENTLY ASKED QUESTIONS
How does Alaskan King Sleep ship such large mattresses?

The Luxe Alaskan King Mattress ships FREE via FedEx in three separate shipments with components compressed and roll-packed to fit in their parcels. See each box's contents, weight, and dimensions below.
Box 1

Contents: Two mattress core quadrants

Weight: 92 lb

Dimensions: 15” x 15” x 59”

Box 3

Contents: Two mattress core quadrants

Weight: 92 lb

Dimensions: 15” x 15” x 59”

Box 3

Contents: One foam topper and one mattress shell

Weight: 95 lb

Dimensions: 15” x 15” x 59”
How do Alaskan King size beds compare to other bed sizes?

More Mattress Sizes

See how your current bed size stacks up against the Alaskan King.

Oversized Mattresses

  • Alaskan King Mattress Dimensions: 108"W x 108"L
  • Alberta King Mattress Dimensions: 96"W x 96"L
  • Texas King Mattress Dimensions: 80"W x 98"L
  • Wyoming King Mattress Dimensions: 84"W x 84"L

Standard Mattresses

  • California King Mattress Dimensions: 72"W x 84"L
  • King Mattress Dimensions: 76"W x 80"L
  • Queen Mattress Dimensions: 60"W x 80"L
  • Full Mattress Dimensions: 53"W x 75"L
  • Twin XL Mattress Dimensions: 38"W x 80"L
  • Twin Mattress Dimensions: 38"W x 74"L
Is an Alaskan King the same thing as a Family Bed?

The term "Family Bed" may refer to any bed size suited for a family OR to the specific mattress size that some retailers call the Family Bed or Family Bed XL. The latter typically measures 144 inches wide by 84 inches long.
What bedding dimensions are compatible with Alaskan King mattresses?

Fitted Sheet

Your fitted sheet should have the same width and length as your mattress: 108 inches by 108 inches. Be sure to check the pocket depth to ensure it can accommodate the height of your mattress—our Luxe Alaskan King Mattress is 13 inches tall.

Flat Sheet

Flat sheets for Alaskan King mattresses usually measure 125 by 125 inches, but dimensions can vary depending on how much overhang you want on each side.

Comforter or Duvet

You'll also need an Alaskan King size comforter or duvet cover and insert. Typical Alaskan King comforters and duvets measure around 136 by 120 inches, but again, dimensions vary depending on the overhang.
What base dimensions are compatible with Alaskan King mattresses?

Alaskan King mattresses require a foundation with a platform roughly 108 to 109 inches wide and 108 to 109 inches long. OurAlaskan King Bed Frameis the perfect fit for any Alaskan King mattress.