An Alaskan king bed is typically 108 inches by 108 inches, which is 9 feet by 9 feet (about 274 cm by 274 cm).

Quick Scoop

  • Shape: Perfect square.
  • Dimensions: 108" x 108" (9' x 9').
  • Surface area: About 81 square feet (11,664 sq in), nearly double a regular king.
  • Room size you’d want: Most guides suggest at least a 15' x 15' bedroom so it doesn’t overwhelm the space.
  • Compared to standard king: Roughly 32–36 inches wider and about 24–28 inches longer than a normal or California king, depending on the comparison.

A Feel for the Size

Imagine putting a regular king bed down, then adding another half a king to the side and extra length at the bottom—that’s the kind of sprawling, wall-to- wall sleep space an Alaskan king gives you.

HTML size table

[5][1][7] [1][7] [7][1]
Bed type Width Length Surface area
Alaskan king 108 in (9 ft) 108 in (9 ft) 11,664 sq in (~81 sq ft)
Standard king 76 in 80 in 6,080 sq in (~42 sq ft)
California king 72 in 84 in 6,048 sq in (~42 sq ft)
**Meta description (SEO):** Wondering how big an Alaskan king bed is? Learn the exact 108" x 108" dimensions, how it compares to king and California king, and what room size you need for this giant mattress.

Information gathered from public forums or data available on the internet and portrayed here.